Document and Entity Information [Abstract] Statement [Table] Statement [Line Items] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Document Fiscal Year Focus Document Fiscal Period Focus Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents, Amortized Cost Basis Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents Accounts Receivable, Net, Current Accounts Receivable, Net, Current, Total Accounts receivable, net of allowance for doubtful accounts of $1,018 at March 31, 2012 and $1,129 at December 31, 2011 Prepaid Expense and Other Assets, Current Prepaid Expense and Other Assets, Current, Total Prepaid expenses and other current assets Deferred Tax Assets, Net, Current Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current, Beginning Balance Deferred Tax Assets, Net, Current, Total Deferred tax assets Assets, Current Total current assets Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property and equipment, net Property and equipment, net Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Goodwill Intangible Assets, Net (Excluding Goodwill) Net Intangible assets, net Intangible assets, Net Deferred Tax Assets, Net, Noncurrent Non-current deferred tax assets, net Deferred tax assets Other Assets, Noncurrent Other Assets, Noncurrent, Total Other assets Assets TOTAL ASSETS Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Accrued Liabilities, Current Accrued expenses Accrued expenses Deferred Revenue, Current Deferred Revenue, Current, Total Deferred revenue Liabilities of Disposal Group, Including Discontinued Operation, Current Liabilities of discontinued operations related to Company's tax indemnification Liabilities of Disposal Group, Including Discontinued Operation, Current, Total Liabilities of discontinued operations Liabilities, Current Total current liabilities Convertible Notes Payable, Noncurrent Notes, Carrying Amount Convertible notes due Other Liabilities, Noncurrent Other Liabilities, Noncurrent, Total Other long-term liabilities Commitments and contingencies Commitments and contingencies Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Preferred stock, 50,000,000 shares authorized; no shares issued and outstanding Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock, $0.01 par value per share, 650,000,000 shares authorized; 62,410,849 shares issued at March 31, 2012 and 62,410,255 shares issued at December 31, 2011 Additional Paid in Capital, Common Stock Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Additional paid-in capital Treasury Stock, Value Treasury stock, at cost; 6,564,288 shares at March 31, 2012 and 6,685,439 shares at December 31, 2011 Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Accumulated deficit Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Stockholders' equity Liabilities and Equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Allowance for Doubtful Accounts Receivable, Current Allowance for Doubtful Accounts Receivable, Current, Ending Balance Allowance for Doubtful Accounts Receivable, Current, Beginning Balance Accounts receivable, net of allowance for doubtful accounts Preferred stock, shares authorized Preferred stock, shares authorized Preferred stock, shares issued Preferred Stock, Shares Issued, Total Preferred stock, shares issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value Common stock, shares authorized Common stock, shares authorized Common Stock, Shares, Issued Common Stock, Shares, Issued, Total Common stock, shares issued Treasury stock, shares Treasury Stock Shares, Ending Balance Treasury Stock Shares , Beginning Balance Treasury stock, shares Consolidated Statements of Operations [Abstract] Sales Revenue, Services, Net Revenues Sales Revenue, Services, Net, Total Revenue Cost of Services Cost of Services, Total Cost of operations Selling and Marketing Expense Selling and Marketing Expense, Total Sales and marketing General and Administrative Expense General and Administrative Expense, Total General and administrative Depreciation, Depletion and Amortization, Nonproduction Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation and amortization Investment Income, Interest Interest income Interest income Interest Expense Interest Expense, Total Interest expense Gain (loss) on investments Gain on investments (Loss) gain on investments Gain on investments Gain (Loss) on Investments, Total Loss on investments Other Nonoperating Income (Expense) Other expense Other expense Other income (expense), net Other (expense) income, net Other expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest (Loss) income before income tax (benefit) provision (Loss) income from continuing operations before income tax (benefit) provision Income Tax Expense (Benefit) Income tax (benefit) provision Total income tax provision (benefit) Income tax (benefit) provision Net Income (Loss) Attributable to Parent Net income Net (loss) income Net (loss) income Earnings Per Share [Abstract] Weighted-average number of potentially dilutive common shares that were excluded from the computation of diluted income (loss) per common share Net (loss) income per common share: Earnings Per Share, Basic Net (loss) income per common share - Basic Net income attributable to Company stockholders Basic Earnings Per Share, Diluted Net (loss) income per common share - Diluted Net income attributable to Company stockholders Diluted Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average shares outstanding used in computing per share amounts: Weighted Average Number of Shares Outstanding, Basic Basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted-average shares - Basic Weighted Average Number of Shares Outstanding, Diluted Adjusted weighted-average shares after assumed conversions - Diluted Adjusted weighted-average shares after assumed conversions - Diluted Diluted Consolidated Statements of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net (loss) income to net cash provided by operating activities: Non-cash interest, net. Noncash Interest Net Non-cash interest Share-based Compensation Consolidated income from continuing operations Share-based Compensation, Total Non-cash stock-based compensation Deferred Income Tax Expense (Benefit) Approximate deferred income tax benefit primarily related to the reversal of income tax valuation allowance attributable to its ARS Deferred income tax provision (benefit) Deferred income taxes Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other, net Increase (Decrease) in Prepaid Expense and Other Assets, Total Prepaid expenses and other, net Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accrued expenses and other long-term liabilities Increase (Decrease) in Deferred Revenue Deferred revenue Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by continuing operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash used in discontinued operations Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Proceeds received from ARS option. Proceeds Received from ARS Option Proceeds received from ARS option Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Net Cash Provided by (Used in) Investing Activities Net cash provided by investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Proceeds from Stock Options Exercised Proceeds from exercise of stock options Cash used for withholding taxes due on stock-based awards Cash Used for Withholding Taxes Due on Stock Based Awards Cash used for withholding taxes due on stock-based awards Proceeds from Convertible Debt Net proceeds from issuance of 2.50% convertible notes and 2.25% convertible notes Proceed From sale of Notes Payments for Repurchase of Common Stock Purchase of treasury stock Cash used to purchase of shares Excess Tax Benefit from Share-based Compensation, Financing Activities Excess tax benefit on stock-based awards Net Cash Provided by (Used in) Financing Activities Net cash (used in) provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net increase in cash and cash equivalents Debt Instrument, Interest Rate, Stated Percentage Accrued interest rate on senior secured notes Interest on convertible notes Summary of Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Discontinued Operations [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Discontinued Operations Convertible Notes [Abstract] Long-term Debt [Text Block] Convertible Notes Related Party Transaction [Abstract] Related Party Transactions Disclosure [Text Block] Related Party Transaction Fair Value of Financial Instruments and Non-Recourse Credit Facilities [Abstract] Fair Value Disclosures [Text Block] Fair Value of Financial Instruments and Non-Recourse Credit Facilities Stock repurchase program tender offers and other repurchases. Stock Repurchase Program Tender Offers and Other Repurchases [Abstract] Stock repurchase program tender offers and other repurchases. Stock Repurchase Program Tender Offers and Other Repurchases [Text Block] Stock Repurchase Program, 2012 Tender Offer, 2010 Tender Offers and Other Repurchases Intangible Assets [Abstract] Intangible Assets Disclosure [Text Block] Intangible Assets Commitments and Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Stock-Based Compensation [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation Other expense [Abstract] Other Income and Other Expense Disclosure [Text Block] Other expense Background policy. Background Policy [Text Block] Background Interim Financial Statements Policy. Interim Financial Statements [Policy Text Block] Interim Financial Statements Comparability of interim financial data due to seasonality. Comparability of Interim Financial Data Due to Seasonality [Policy Text Block] Seasonality Use of Estimates, Policy [Policy Text Block] Accounting Estimates Segment Reporting, Policy [Policy Text Block] Presentation of Segment Information Commitments and Contingencies, Policy [Policy Text Block] Loss Contingencies Earnings Per Share, Policy [Policy Text Block] Net (Loss) Income Per Common Share Recent accounting pronouncement. Recent Accounting Pronouncement [Policy Text Block] Recent Accounting Pronouncements Schedule of Segment Reporting Information, by Segment [Table Text Block] Summary of revenues relating to public and private portal Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Net (Loss) Income Per Common Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Total weighted average number of potentially dilutive common shares that were excluded from the computation of diluted income per common share Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Company's Level 1 and Level 3 financial assets that were measured and recorded at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Reconciles of beginning and ending balances of the Company's Level 3 assets Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Carrying value and estimated fair value of the Company's convertible notes that are carried at historical cost Schedule of finite and indefinite lived intangible assets. Schedule of Finite and Indefinite Lived Intangible Assets [Table Text Block] Intangible assets subject to amortization Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Aggregate amortization expense for intangible assets Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Stock option activity Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Fair value of options granted Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Restricted Stock Awards Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary of Stock-Based Compensation Expense Schedule of Other Nonoperating Income (Expense) [Table Text Block] Other expense Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information, Revenue for Reportable Segment [Abstract] Summary of revenues relating to public and private portal Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share Reconciliation [Abstract] Numerator: Preferred Stock Dividends And Other Adjustments Effect of participating non-vested restricted stock Preferred Stock Dividends and Other Adjustments, Total Net Income (Loss) Available to Common Stockholders, Basic Net (loss) income - Basic Net (loss) income - Basic Net (loss) income - Basic Interest on Convertible Debt, Net of Tax Interest expense on convertible notes, net of tax Net Income (Loss) Available to Common Stockholders, Diluted (Loss) Income from continued and discontinued operations - Diluted Income from continued and discontinued operations - Diluted Net (loss) income - Diluted Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Denominator: Incremental Common Shares Attributable to Share-based Payment Arrangements Incremental Common Shares Attributable to Share-based Payment Arrangements, Total Employee stock options and restricted stock Stock Issued During Period, Shares, Conversion of Convertible Securities Convertible notes, shares Convertible notes, shares Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities Name [Domain] Antidilutive Securities, Name [Domain] Stock Compensation Plan [Member] Options and restricted stock [Member] Convertible Debt Securities [Member] Convertible notes [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total weighted average number of potentially dilutive common shares that were excluded from the computation of diluted income (loss) per common share Sale of Stock, Percentage of Ownership before Transaction Sale of stock, percentage of ownership before transaction Exchange ratio. Exchange Ratio Exchange ratio Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Axis] Disposal Groups Including Discontinued Operations Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] Emdeon Practice Services [Member]. Emdeon Practice Services [Member] Emdeon Practice Services [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Discontinued Operations. Discontinued Operations (Textual) [Abstract] Discontinued Operations (Textual) [Abstract] Indemnification obligations initial number of former officers and directors. Indemnification Obligations Initial Number of Former Officers and Directors Indemnification obligations, initial number of former officers and directors Indemnification obligations number of former officers and directors. Indemnification Obligations Subsequent Number of Former Officers and Directors Indemnification obligations, subsequent number of former officers and directors Loss Contingency, Loss in Period Pre-tax charge related to indemnification obligation Number Of Officers And Directors Found Guilty. Number of Officers and Directors Found Guilty Number of officers and directors found guilty Number of defendants in State One. Number of defendants in State One Number of defendants in South Carolina Number of defendants in State Two. Number of defendants in State Two Number of defendants in Florida Loss contingency accrual, at carrying value Loss Contingency Accrual, at Carrying Value, Ending Balance Loss Contingency Accrual, at Carrying Value, Beginning Balance Loss contingency accrual, at carrying value Disposal Group, Including Discontinued Operation, Other Liabilities Certain reimbursements received from the Company's insurance carriers Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Convertible notes two thousand eighteen member. Convertible Notes Two Thousand Eighteen [Member] 2.50% convertible notes due 2018 [Member] 2.50% convertible notes due 2018 [Member] Convertible notes due 2016 Member. Convertible Notes Due Two Thousand Sixteen [Member] 2.25% convertible notes due 2016 [Member] 2.25% Convertible notes due 2016 [Member] Debt Instrument [Line Items] Repurchase and Conversion of Convertible Notes. Repurchase and Conversion of Convertible Notes (Textual) [Abstract] Convertible Notes (Textual) [Abstract] Debt Instrument, Face Amount Convertible notes due Debt Instrument, Maturity Date Debt Instrument, Maturity Date Treasury Stock, Shares, Acquired Common stock repurchased, shares Treasury stock purchased, shares Treasury Stock Acquired, Average Cost Per Share Average purchase price per share of treasury stock Common stock repurchased, price per share Debt Instrument, Convertible, Conversion Ratio Conversion rate of notes per thousand dollar of principal amount Debt Instrument, Convertible, Conversion Price Conversion price per share of common stock Debt Instrument, Convertible, Number of Equity Instruments Number of shares converted into common stock Convertible shares Repurchase price as percentage of principal amount. Repurchase Price as Percentage of Principal Amount Percentage of principal amount equal to repurchase price Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions, by Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity [Member] FESCO [Member] FESCO [Member] Related Party Transaction [Line Items] Related Party Transaction. Related Party Transaction (Textual) [Abstract] Related Party Transactions (Textual) [Abstract] Related Party Transaction, Revenues from Transactions with Related Party Revenue, related party Percentage beneficial ownership. Percentage Beneficial Ownership Percentage beneficial ownership Percentage beneficial ownership owned. Percentage Beneficial Ownership Owned Percentage beneficial ownership owned Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value by Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements Recurring [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Inputs Level1 [Member] Fair Value, Inputs, Level 1 [Member] Level 1 [Member] Fair Value Inputs Level3 [Member] Fair Value, Inputs, Level 3 [Member] Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Assets Measured On Recurring Basis Financial Statement Caption. Fair Value Assets Measured on Recurring Basis Financial Statement Caption [Abstract] Company's Level 1 and Level 3 financial assets that were measured and recorded at fair value on a recurring basis Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents, Fair Value Marketable Securities, Unrealized Gain (Loss) Cash and cash equivalents, Gross Unrealized Gains (Losses) Marketable Securities, Unrealized Gain (Loss), Total Cash and cash equivalents, Gross Unrealized Gains (Losses) Available-for-sale Securities, Amortized Cost Basis Available-for-sale Securities, Amortized Cost Basis, Total ARS Option, Amortized Cost Basis Available-for-sale Securities, Fair Value Disclosure ARS Option, Fair Value ARS Option, Fair Value Available-for-sale Securities, Gross Unrealized Gain (Loss) Gross Unrealized Gains (Losses) ARS Option, Gross Unrealized Gains (Losses) Available-for-sale Securities, Gross Unrealized Gain (Loss), Total ARS Option, Gross Unrealized Gains (Losses) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Reconciles of beginning and ending balances of the Company's Level 3 assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair value as of the end of the period Fair value as of the beginning of the period Value of the ARS Option reflected in prepaid expenses and other current assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements, Total Cash proceeds received Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Gain included in earnings Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] 2.25% Notes. Two Point Twenty Five Percent Notes [Member] 2.25% Notes [Member] 2.25% Notes [Member] 2.50% Notes. Two Point Fifty Percent Notes [Member] 2.50% Notes [Member] 2.50% Notes [Member] Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financial Assets: Long-term Debt, Fair Value Notes, Fair Value Notes, Fair Value Fair Value by Asset Class [Axis] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain] Investments [Member] Investments [Member] Securities Assets [Member] Securities (Assets) [Member] Debt Securities [Member] Debt Securities [Member] Auction Rate Securities [Member] Auction Rate Securities [Member] Auction Rate Securities [Member] ARS Option. Ars Option [Member] ARS Option [Member] ARS Option [Member] Investment Type [Axis] Investment Type Categorization [Member] Investment Type Categorization [Domain] Private Equity Funds [Member] Privately Held Company [Member] Privately Held Company [Member] Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Fair value of financial instruments and non recourse credit facilities. Fair Value of Financial Instruments and Non Recourse Credit Facilities (Textual) [Abstract] Fair Value of Financial Instruments and Non Recourse Credit Facilities (Textual) [Abstract] Student loan percentage guaranteed under FFELP. Student Loan Percentage Guaranteed under FFELP Student loan percentage guaranteed under FFELP Frequency of auction periods. Frequency of Auction Periods Company frequent auction period Payments for (Proceeds from) Investments Payments for (Proceeds from) Investments, Total Proceeds from investments Cost-method Investments, Aggregate Carrying Amount Carrying Amount Class of Treasury Stock [Table] Schedule Of Stock Repurchase Program And Offer Name Axis. Schedule of Stock Repurchase Program and Offer Name [Axis] Schedule of Stock Repurchase Program and Offer Name Domain. Schedule Of Stock Repurchase Program And Offer Name [Domain] Schedule of Stock Repurchase Program and Offer Name [Domain] Tender offers. Tender Offers [Member] Tender Offers [Member] Tender Offer [Member] Two thousand eleven stock repurchase program. Two Thousand Eleven Stock Repurchase Program [Member] 2011 Stock Repurchase Program [Member] Two thousand eight stock repurchase program. Two Thousand Eight Stock Repurchase Program [Member] 2008 Stock Repurchase Program [Member] Equity, Class of Treasury Stock [Line Items] Stock repurchase program and tender offer. Stock Repurchase Program and Tender Offer (Textual) [Abstract] Stock Repurchase Program, Authorized Amount Common stock repurchase value, authorized Stock repurchase Common Stock value, authorized Stock repurchase program additional authorized amount. Stock Repurchase Program Additional Authorized Amount Stock repurchase program authorized additional amount Treasury Stock, Value, Acquired, Cost Method Purchase of treasury stock in tender offer Purchase of treasury stock in tender offer Stock repurchased program value reflected as treasury stock recorded using the cost method Stock repurchase program, remaining authorized repurchase amount Stock repurchase program purchase price one. Stock Repurchase Program Purchase Price One Stock repurchase program purchase price one Stock repurchase program purchase price two. Stock Repurchase Program Purchase Price Two Stock repurchase program purchase price two Schedule of indefinite and finite lived intangible assets by major class. Schedule of Indefinite and Finite Lived Intangible Assets By Major Class [Table] Indefinite and finite lived intangible assets. Indefinite and Finite Lived Intangible Assets [Line Items] Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible assets subject to amortization Intangible assets subject to amortization Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Gross, Total Intangible Assets, Gross Carrying Amount Finite-Lived Intangible Assets, Accumulated Amortization Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets, Net Intangible Assets, Net Intangible Assets, net Finite-Lived Intangible Assets, Weighted-Average Useful Life Finite-Lived Intangible Assets, Weighted-Average Useful Life, Total Intangible Assets, Weighted Average Remaining Useful Life Indefinite-lived Intangible Assets Indefinite-lived Intangible Assets, Ending Balance Indefinite-lived Intangible Assets, Beginning Balance Indefinite-Lived Intangible Assets, net Indefinite-Lived Intangible Assets, Gross Carrying Amount Indefinite lived intangible assets net. Indefinite Lived Intangible Assets Net Indefinite lived intangible assets, Net Indefinite lived intangible assets, net Intangible assets excluding goodwill, gross. Intangible Assets Excluding Goodwill Gross Intangible assets excluding goodwill, gross Intangible assets, Gross Carrying Amount Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] Aggregate amortization expense for intangible assets Future Amortization Expense, Year One 2012 (April 1st to December 31st) Future Amortization Expense, Year Two 2013 Future Amortization Expense, Year Three 2014 Future Amortization Expense, Year Four 2015 Future Amortization Expense, Year Five 2016 Future Amortization Expense, after Year Five Thereafter Intangible assets. Intangible Assets (Textual) [Abstract] Intangible Assets (Textual) [Abstract] Amortization Of Intangible Assets Amortization of Intangible Assets, Total Amortization expense Commitments and Contingencies. Commitments and Contingencies (Textual) [Abstract] Commitments and Contingencies (Textual) [Abstract] Number of actions that have been consolidated. Number of Actions That Have Been Consolidated Number of actions that have been consolidated Maximum number of days within which consolidated complaint shall be filed. Maximum Number of Days Within Which Consolidated Complaint Shall Be Filed Maximum number of days within which consolidated complaint shall be filed Agreement time period after written notice agreement can be terminated. Agreement Time Period after Written Notice Agreement can be Terminated Number of days of written notice required to terminate tolling agreement by either party Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock options activity Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Shares Outstanding, Ending Balance Shares Outstanding, Beginning Balance Outstanding, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Outstanding, at the end of the period Weighted Average Exercise Price Per Share, Outstanding, at the beginning of the period Outstanding, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total Granted, Shares Share based compensation arrangements by share based payment award options grants in period weighted average exercise price. Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised, Shares Issuance of stock for option exercises and other issuances, Shares Share based compensation arrangements by share based payment award options exercises in period weighted average exercise price. Share Based Compensation Arrangements by Share Based Payment Award Options Exercises in Period Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Cancelled, Shares Share based compensation arrangements by share based payment award options forfeitures in period weighted average exercise price. Share Based Compensation Arrangements by Share Based Payment Award Options Forfeitures in Period Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Cancelled Share based compensation arrangements by share based payment award options outstanding weighted average remaining contractual term. Share Based Compensation Arrangements by Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Life (In Years), Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate Intrinsic Value, Outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Vested and Exercisable, Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Weighted Average Exercise Price per Share, Vested and exercisable at the end of the period Share based compensation arrangements by share based payment award options vested and expected to vest exercisable weighted average remaining contractual term. Share Based Compensation Arrangements by Share Based Payment Award Options Vested and Expected to Vest Exercisable Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Life (In Years), Vested and exercisable at the end of the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Aggregate Intrinsic Value, Vested and Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Fair value of options granted Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, Minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected volatility, Maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average fair value of options granted during the period Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Restricted Stock [Member] Restricted stock [Member] Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] Restricted Stock Awards Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted Stock Awards, Shares, Balance at the end of the year Restricted Stock Awards, Shares, Balance at the beginning of the year Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Balance at the end of the year Weighted Average Grant Date Fair Value, Balance at the beginning of the year Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted Stock Awards, Shares, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Restricted Stock Awards, Shares, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Restricted Stock Awards, Shares, Forfeited Share based compensation arrangements by share based payment award equity instruments other than options forfeited in period weighted average grant date fair value. Share Based Compensation Arrangements by Share Based Payment Award Equity Instruments Other Than Options Forfeited in Period Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value, Forfeited Stock Options [Member] Stock options [Member] Other stock based compensation. Other Stock Based Compensation [Member] Other [Member] Other [Member] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs, by Report Line [Axis] Employee Service Share Based Compensation Allocation Of Recognized Period Costs Report Line [Domain] Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Report Line [Domain] Cost of operations. Cost Of Operations [Member] Cost of operations [Member] Cost of Operations [Member] Selling And Marketing Expense [Member] Sales and Marketing [Member] Sales and marketing [Member] General And Administrative Expense [Member] General and administrative [Member] General and Administrative Expense [Member] Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] Summary of Stock-Based Compensation Expense Allocated Share-based Compensation Expense Stock based compensation expense Total stock-based compensation expense Total stock-based compensation expense Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Stock Based Compensation. Stock-based Compensation (Textual) [Abstract] Stock-Based Compensation (Textual) [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Maximum number of shares of the Company's common stock Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Common stock available for future grants Market price of company's common stock. Market Price of Companys Common Stock Market price of Company's common stock Stock options surrendered by certain Companys officers and directors. Stock options surrendered by certain Companys officers and directors Stock options surrendered by certain Companys officers and directors Weighted average strike price for stock options surrendered by certain Companys officers and directors. Weighted average strike price for stock options surrendered by certain Companys officers and directors Weighted average strike price for stock options surrendered by certain Companys officers and directors Employee withholding tax paid. Employee Withholding Tax Paid Employee withholding tax paid Combined value of stock option exercised. Combined value of Stock option exercised Combined value of Stock option exercised and restricted stocks vested Share based compensation arrangement by share based payment awards award vesting period. Share Based Compensation Arrangement by Share Based Payment Awards Award Vesting Period Share based compensation arrangement by share based payment awards award vesting period Share based compensation arrangement by share based payment award award expiration period. Share Based Compensation Arrangement by Share Based Payment Award Award Expiration Period Vesting dates expire within date of grant Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized stock-based compensation expense related to unvested awards Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Period for recognition of unrecognized Stock based compensation expense Percentage of tax benefit attributable to stock-based compensation. Percentage of Tax Benefit attributable to stock based compensation Percentage of tax benefit attributable to stock-based compensation Share based compensation expense of options surrendered. Share Based Compensation Expense Of Options Surrendered Share based compensation expense of options surrendered Other Nonoperating Income (Expense) [Abstract] Other expense Other (expense) income, net consists of the following items: Severance Costs Severance (a) Severance (a) Legal Fees Legal expense (b) Legal expense (b) 2.50% convertible notes due 2018. Two Point Five Zero Percent Convertible Notes Due Two Thousand Eighteen [Member] 2.50% convertible notes due 2018 [Member] 2.25% Convertible notes due 2016. Two Point Two Five Percent Convertible Notes Due Two Thousand Sixteen [Member] 2.25% Convertible notes due 2016 [Member] Statement, Business Segments [Axis] Segment [Domain] Segment [Domain] Public portal. Public Portal [Member] Public portal [Member] Private portal. Private Portal [Member] Private portal [Member] Indefinite and finite lived intangible assets by major class. Indefinite and Finite Lived Intangible Assets by Major Class [Axis] Indefinite and finite lived intangible assets major class name. Indefinite And Finite Lived Intangible Assets Major Class Name [Domain] Indefinite and Finite Lived Intangible Assets Major Class Name [Domain] Media Content [Member] Content [Member] Content [Member] Customer Relationships [Member] Customer relationships [Member] Customer relationships [Member] Technology and patents. Technology And Patents [Member] Technology and patents [Member] Trade Names [Member] Trade names [Member] Trade names-definite lives [Member] Deferred Compensation Arrangement with Individual, Share-based Payments, by Title of Individual [Axis] Title Of Individual With Relationship To Entity [Domain] Title of Individual with Relationship to Entity [Domain] Director [Member] Director [Member]