Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Fair Value Disclosures [Abstract]
Investments
Fair Value Disclosures [Text Block]
Risks and Uncertainties [Abstract]
Concentration of Risk
Concentration Risk Disclosure [Text Block]
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Stock Options
Stock Options [Member]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Number of common shares reserved for issuance upon exercise of stock options and settlement of RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Exercise of stock options, shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Intrinsic value of exercised options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value
Tax benefit realized from exercise of stock options
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Operating Activities
Tax benefit shortfall related to share-based compensation activity
Excess Tax Deficiency from Share-based Compensation, Operating Activities
Excess Tax Deficiency from Share-based Compensation, Operating Activities
Option expirations in period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period
Stock-based compensation expense
Allocated Share-based Compensation Expense
Income tax benefit of stock-based compensation expense
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense
Unrecognized compensation cost
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized
Unrecognized compensation cost, period for recognition
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition
Shares of common stock represented by each RSU
Share-based Compensation Arrangements by Share-based Payment, Shares of Common Stock Represented by Each Restricted Stock Unit
Share-based Compensation Arrangements by Share-based Payment, Shares of Common Stock Represented by Each Restricted Stock Unit
Number vested and released in period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Fair Value Information of Short and Long-term Investments
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Schedule of Difference Between Amortized Cost and Fair Value
Schedule of Difference Between Amortized Cost and Fair Value [Table Text Block]
Schedule of Difference Between Amortized Cost and Fair Value [Table Text Block]
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets
Other Assets Disclosure [Text Block]
Summary of Stock Option Activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Summary of Assumptions Used for Options Granted
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Summary of Restricted Stock Units Activity
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Revision of Previously Issued Financial Statements [Abstract]
Revision of Previously Issued Financial Statements [Abstract]
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]
Adjustments for Error Corrections [Axis]
Adjustments for Error Corrections [Axis]
Adjustments for Error Correction [Domain]
Adjustments for Error Correction [Domain]
Restatement Adjustment
Restatement Adjustment [Member]
Adjustment to Reflect Changes to Aging of Accounts Receivable
Adjustment to Reflect Changes to Aging of Accounts Receivable [Member]
Adjustment to Reflect Changes to Aging of Accounts Receivable [Member]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
As Reported
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net
Accounts Receivable, Net
Current deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Current
Total current assets
Assets, Current
Total assets
Assets
Accrued liabilities
Accrued Liabilities, Current
Total current liabilities
Liabilities, Current
Total liabilities
Liabilities
Retained earnings
Retained Earnings (Accumulated Deficit)
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
Instructional costs and services
Cost of Services
Total costs and expenses
Costs and Expenses
Operating income
Operating Income (Loss)
Income tax expense
Income Tax Expense (Benefit)
Basic
Earnings Per Share, Basic
Income before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Diluted
Earnings Per Share, Diluted
Net income
Net Income (Loss) Attributable to Parent
Provision for bad debts
Provision for Doubtful Accounts
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Earnings Per Share [Abstract]
Earnings Per Share
Earnings Per Share [Text Block]
Statement of Other Comprehensive Income [Abstract]
Statement [Table]
Statement [Table]
Statement [Line Items]
Statement [Line Items]
Other comprehensive gain (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized gains (losses) on investments
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Balance, beginning of period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Awarded
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested and released
Canceled
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Balance, end of period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Balance, beginning of period, weighted average grant date fair value (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Awarded, weighted average grant date fair value (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested and released, weighted average grant date fair value (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Canceled, weighted average grant date fair value (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Balance, end of period, weighted average grant date fair value (in USD per share)
Deferred Revenue [Abstract]
Deferred revenue
Deferred Revenue, Current
Student deposits
Deferred Credits and Other Liabilities
Total deferred revenue and student deposits
Deferred Revenue and Credits, Current
Debt Disclosure [Abstract]
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Reference Interest Rate by Type [Axis]
Reference Interest Rate by Type [Axis]
Reference Interest Rate by Type [Axis]
Reference Interest Rate, Type [Domain]
Reference Interest Rate, Type [Domain]
Reference Interest Rate, Type [Domain]
Federal Funds Rate
Federal Funds Rate [Member]
Federal Funds Rate [Member]
Daily Adjusting LIBOR
Daily LIBOR [Member]
Daily Adjusting LIBOR [Member]
Interest Rate by Type [Axis]
Interest Rate by Type [Axis]
Interest Rate by Type [Axis]
Interest Rate, Type [Domain]
Interest Rate, Type [Domain]
Interest Rate, Type [Domain]
Base Rate
Base Rate [Member]
Base Rate [Member]
Eurodollar-based Rate
Eurodollar-based Rate [Member]
Eurodollar-based Rate [Member]
Lender Name [Axis]
Lender Name [Axis]
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Lender [Domain]
January 2010 Credit Facility
January 2010 Credit Facility [Member]
January 2010 Credit Facility [Member]
April 2012 Credit Facility
April 2012 Credit Facility [Member]
April 2012 Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Revolving line of credit, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Revolving line of credit, current borrowing capacity
Line of Credit Facility, Current Borrowing Capacity
Revolving line of credit, maximum swing-line advances
Line of Credit Facility, Maximum Swing-line Advances
Line of Credit Facility, Maximum Swing-Line Advances
Revolving line of credit, term
Line of Credit Facility, Length in Years
Line of Credit Facility, Length in Years
Revolving line of credit, notice required for termination
Line of Credit Facility, Notice Required for Termination
Line of Credit Facility, Notice Required for Termination
Revolving line of credit, fixed portion of interest rate
Line of Credit Facility, Interest Rate Percentage, Fixed Portion
Line of Credit Facility, Interest Rate Percentage, Fixed Portion
Revolving line of credit, variable portion of interest rate, addition to reference rate
Line of Credit Facility, Interest Rate Percentage, Variable Portion, Addition to Reference Rate
Line of Credit Facility, Interest Rate Percentage, Variable Portion, Addition to Reference Rate
Commitment fee, percentage on undrawn amount of letter of credit
Letter of Credit, Unused Capacity, Commitment Fee Percentage
Letter of Credit, Unused Capacity, Commitment Fee Percentage
Revolving line of credit, facility fee, percentage
Line of Credit Facility, Commitment Fee Percentage
Revolving line of credit, amount outstanding
Line of Credit Facility, Amount Outstanding
Revolving line of credit, amount outstanding
Letters of Credit Outstanding, Amount
Surety Bond Facility [Abstract]
Surety Bond Facility [Abstract]
Surety Bond Facility [Abstract]
Surety bond facility, available amount
Surety Bond Facility Maximum Amount
Maximum amount under facility to issue surety bonds.
Surety bond facility, issued amount
Surety Bond Facility Issued Amount
Total amount of surety bonds issued under facility at period date.
Leases [Abstract]
Future Minimum Rental Payments Under Non-Cancelable Operating Leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Accounting Policies [Abstract]
Restricted cash
Restricted Cash and Cash Equivalents, Current
Advertising costs
Advertising Expense
Number of reportable segments
Number of Reportable Segments
Income Tax Disclosure [Abstract]
Components of Income Tax Expense
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Summary of Unrecognized Tax Benefits
Summary of Income Tax Contingencies [Table Text Block]
Stock-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Statement of Cash Flows [Abstract]
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Amortization of premium/discount
Accretion (Amortization) of Discounts and Premiums, Investments
Stock-based compensation
Share-based Compensation
Excess tax benefit of option exercises
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Net, Operating Activities
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Net, Operating Activities
Loss on disposal of fixed assets
Gain (Loss) on Sale of Property Plant Equipment
Changes in operating assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Student loans receivable
Increase (Decrease) in Notes Receivables
Other long-term assets
Increase (Decrease) in Other Operating Assets
Deferred revenue and student deposits
Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Uncertain tax position
Unrecognized Tax Benefits, Period Increase (Decrease)
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Purchases of investments
Payments to Acquire Available-for-sale Securities
Restricted cash
Increase (Decrease) in Restricted Cash
Capitalized curriculum development costs
Capitalized Curriculum Development Costs
Capitalized curriculum development costs
Sales and maturities of investments
Proceeds from Sale and Maturity of Available-for-sale Securities
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from exercise of stock options
Proceeds from Stock Options Exercised
Tax withholdings related to net issuance of stock options
Payments Related to Tax Withholding for Share-based Compensation
Excess tax benefit of option exercises
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities
Proceeds from the issuance of stock under employee stock purchase plan
Proceeds from Stock Plans
Proceeds from the exercise of warrants
Proceeds from Warrant Exercises
Tax withholdings related to net issuance of warrants
Payments Related to Tax Withholding for Net Issuance of Warrants
Payments Related to Tax Withholding for Net Issuance of Warrants
Issuance of restricted stock
Payments Related to Tax Withholding for Restricted Shares Vested
Payments Related to Tax Withholding for Restricted Shares Vested
Payments on leases payable
Repayments of Long-term Capital Lease Obligations
Repurchase of common stock
Payments for Repurchase of Common Stock
Net cash provided by (used in) financing activities
Net Cash Provided by (Used in) Financing Activities
Net increase (decrease) in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of period
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents at end of period
Supplemental disclosure of cash flow information
Supplemental Cash Flow Information [Abstract]
Cash paid for interest
Interest Paid
Cash paid for income taxes
Income Taxes Paid
Supplemental disclosure of non-cash transactions:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Purchase of equipment included in accounts payable and accrued liabilities
Capital Expenditures Incurred but Not yet Paid
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Revision of Previously Issued Financial Statements
Schedule of Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements [Table Text Block]
Cash and Cash Equivalents
Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block]
Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Investments
Investment, Policy [Policy Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Receivables and Allowance for Doubtful Accounts
Receivables, Policy [Policy Text Block]
Property and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Leases
Lease, Policy [Policy Text Block]
Goodwill and Other Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Impairment of Long-Lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Revenue and Deferred Revenue
Revenue Recognition, Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]
Instructional Costs and Services
Cost of Sales, Policy [Policy Text Block]
Admissions advisory and marketing
Marketing and Promotional Costs, Policy [Policy Text Block]
Marketing and Promotional Costs, Policy [Policy Text Block]
General and Administrative
Selling, General and Administrative Expenses, Policy [Policy Text Block]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Segment Information
Segment Reporting, Policy [Policy Text Block]
Comprehensive Income
Comprehensive Income, Policy [Policy Text Block]
Recently Adopted Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of period
Unrecognized Tax Benefits
Gross increases-tax positions in prior period
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions
Gross decreases-tax positions in prior period
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions
Gross increases-current period tax positions
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions
Settlements
Unrecognized Tax Benefits, Increases Resulting from Settlements with Taxing Authorities
Lapse of statute of limitations
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations
Unrecognized tax benefits, end of period
Accrued Liabilities [Abstract]
Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Internal Revenue Service (IRS) [Member]
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards
Operating Loss Carryforwards
Deferred Revenue Arrangement, by Type [Table]
Deferred Revenue Arrangement, by Type [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Maximum
Maximum [Member]
Major Customers [Axis]
Major Customers [Axis]
Name of Major Customer [Domain]
Name of Major Customer [Domain]
Online
Online Customers [Member]
Online Customers [Member]
Campus-based
Campus-based Customers [Member]
Campus-based Customers [Member]
Deferred Revenue Arrangement [Line Items]
Deferred Revenue Arrangement [Line Items]
Conditional admission period
Deferred Revenue, Conditional Admission Period
Deferred Revenue, Conditional Admission Period
Length of educational course, short
Educational Course, Length of Program, Short
Educational Course, Length of Program, Short
Length of educational course, long
Educational Course, Length of Program, Long
Educational Course, Length of Program, Long
Number of disbursement periods for financial aid
Deferred Revenue, Number of Disbursement Periods for Financial Aid
Deferred Revenue, Number of Disbursement Periods for Financial Aid
Number of courses covered by each disbursement
Deferred Revenue, Number of Courses Covered by Each Disbursement
Deferred Revenue, Number of Courses Covered by Each Disbursement
Equity [Abstract]
Schedule of Warrants Outstanding
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Entities [Table]
Entities [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Entity Information [Line Items]
Entity Information [Line Items]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Amendment Description
Amendment Description
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Entity Public Float
Entity Public Float
Receivables [Abstract]
Accounts Receivable, Net
Accounts Receivable, Net, Current [Abstract]
Accounts receivable
Accounts Receivable, Gross, Current
Less allowance for doubtful accounts
Allowance for Doubtful Accounts Receivable, Current
Accounts receivable
Accounts Receivable, Net, Current
Student Loans Receivable, Net
Notes, Loans and Financing Receivable, Net, Noncurrent [Abstract]
Student loans receivable
Notes, Loans and Financing Receivable, Gross, Noncurrent
Less allowance for doubtful accounts
Allowance for Notes, Loans and Financing Receivable, Noncurrent
Student loans receivable, net
Notes, Loans and Financing Receivable, Net, Noncurrent
Statement of Stockholders' Equity [Abstract]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Stock
Common Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Retained Earnings
Retained Earnings [Member]
Accumulated Other Comprehensive Gain/(Loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, shares
Shares, Outstanding
Balance
Stock-based compensation
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Exercises of stock options, net, shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Tax withholdings related to net issuance of stock options
Adjustments Related to Tax Withholding for Share-based Compensation
Excess tax benefit of option exercises
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation
Stock issued under employee stock purchase plan, shares
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Stock issued under employee stock purchase plan
Stock Issued During Period, Value, Employee Stock Purchase Plan
Stock issued under restricted stock plan, shares
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Stock issued under restricted stock plan
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures
Exercise of warrants, shares
Stock Issued During Period Shares Exercise Of Warrants
Stock Issued During Period Shares Exercise of Warrants
Exercise of warrants
Stock Issued During Period Value Exercise Of Warrants
Stock Issued During Period Value Exercise of Warrants
Tax withholdings related to net issuance of warrants
Adjustments Related to Tax Withholding for Warrants
Adjustments Related to Tax Withholding for Warrants
Repurchase of common stock
Treasury Stock, Value, Acquired, Cost Method
Balance, shares
Balance
Change in net deferred tax assets
Increase (Decrease) in Net Deferred Tax Assets
Increase (Decrease) in Net Deferred Tax Assets
Change in net deferred tax expense
Increase (Decrease) in Deferred Tax Assets, Net
Increase (Decrease) in Deferred Tax Assets, Net
Tax benefit shortfall recorded to additional paid in capital
Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation
Tax effect of unrealized gain on investments
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax
Effective income tax rate
Effective Income Tax Rate, Continuing Operations
Gross unrecognized tax benefits
Gross unrecognized tax benefits that would impact effective tax rate if recognized
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Unrecognized tax benefits that would result in adjustments to other tax accounts
Unrecognized Tax Benefits that Would Result in Adjustments to Other Tax Accounts
Unrecognized Tax Benefits that Would Result in Adjustments to Other Tax Accounts
Accrued interest and penalties related to uncertain tax positions
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Loss contingency, estimate of possible loss
Loss Contingency, Estimate of Possible Loss
Current deferred tax liabilities
Deferred Tax Liabilities, Net, Current
Noncurrent deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent
Noncurrent deferred tax liabilities
Deferred Tax Liabilities, Net, Noncurrent
Total net deferred tax assets
Deferred Tax Assets, Net
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles, Net
Goodwill and Intangible Assets Disclosure [Text Block]
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment [Table]
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Land
Land [Member]
Buildings
Building [Member]
Furniture, Office Equipment and Software
Furniture, Office Equipment and Software [Member]
Furniture, Office Equipment and Software [Member]
Leasehold Improvements
Leasehold Improvements [Member]
Vehicles
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property and equipment, gross
Property, Plant and Equipment, Gross
Less accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Total property and equipment, net
Property, Plant and Equipment, Net
Depreciation and amortization associated with property and equipment, including assets under capital lease
Depreciation and Amortization Associated with Property and Equipment
Depreciation and Amortization Associated with Property and Equipment
Prepaid expenses
Prepaid Expense, Current
Prepaid licenses
Other Prepaid Expense, Current
Prepaid income taxes
Prepaid Taxes
Prepaid insurance
Prepaid Insurance
Interest receivable
Interest Receivable, Current
Other current assets
Other Assets, Current
Total prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Subsequent Events [Abstract]
Subsequent Events
Subsequent Events [Text Block]
Goodwill and Intangibles, Net
Schedule of Intangible Assets and Goodwill [Table Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business
Nature of Operations [Text Block]
Property and Equipment
Property, Plant and Equipment [Table Text Block]
Components of Other Comprehensive Loss and the Related Tax Effects
Schedule of Comprehensive Income (Loss) [Table Text Block]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Repayment Plan [Axis]
Repayment Plan [Axis]
Repayment Plan [Axis]
Repayment Plan [Domain]
Repayment Plan [Domain]
[Domain] for Repayment Plan [Axis]
Repayment Plan One
Repayment Plan One [Member]
Repayment Plan One [Member]
Repayment Plan Two
Repayment Plan Two [Member]
Repayment Plan Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Student loans receivable, repayment term following graduation or withdrawal
Loans Receivable, Repayment Term from Graduation or Withdrawal
Loans Receivable, Repayment Term from Graduation or Withdrawal
Student loans receivable, interest rate
Loans Receivable, Interest Rate, Stated Percentage
Loans Receivable, Interest Rate, Stated Percentage
Student loans receivable, monthly payment during school and grace period
Loans Receivable, Monthly Payment During School and Grace Period
Loans Receivable, Monthly Payment During School and Grace Period
Student loans receivable, grace period following graduation or withdrawal
Loans Receivable, Grace Period Following Graduation or Withdrawal
Loans Receivable, Grace Period Following Graduation or Withdrawal
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance, beginning of period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross
Exercised
Forfeitures and expired
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Balance, end of period
Vested and expected to vest at December 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Exercisable at December 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance, beginning of period, weighted-average exercise price (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted, weighted-average exercise price (in USD per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised, weighted-average exercise price (in USD per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Forfeitures, weighted-average exercise price (in USD per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Balance, end of period, weighted-average exercise price (in USD per share)
Vested and expected to vest at December 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Exercisable at December 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Balance, weighted-average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Vested and expected to vest at December 31, 2012, weighted-average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Exercisable at December 31, 2012, weighted-average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Balance, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Vested and expected to vest at December 31, 2012, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Exercisable at December 31, 2012, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table]
Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Consolidated balance sheet data:
Statement of Financial Position [Abstract]
Deferred income taxes
Consolidated statement of income data:
Income Statement [Abstract]
Net income
Revenue
Sales Revenue, Services, Net
Earnings per common share:
Consolidated statement of cash flow data:
Receivables
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Credit Facilities
Debt Disclosure [Text Block]
Accounts Receivable and Student Loans Receivable, Net
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Changes in the Allowance for Doubtful Accounts
Allowance for Credit Losses on Financing Receivables [Table Text Block]
Property and Equipment, Net
Property, Plant and Equipment Disclosure [Text Block]
Deferred Revenue Disclosure [Abstract]
Deferred Revenue and Student Deposits
Deferred Revenue Disclosure [Text Block]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Major Types of Debt and Equity Securities [Domain]
Demand Notes
Variable Rate Demand Obligation [Member]
Corporate Notes and Bonds, Short-term
Corporate Debt Securities, Current [Member]
Corporate Debt Securities, Current [Member]
Corporate Notes and Bonds, Long-term
Corporate Debt Securities, Noncurrent [Member]
Corporate Debt Securities, Noncurrent [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
Maturities in years
Available-for-sale Securities, Maturities
Available-for-sale Securities, Maturities
Amortized cost
Available-for-sale Securities, Amortized Cost Basis
Gross unrealized gain
Available-for-sale Securities, Gross Unrealized Gains
Gross unrealized loss
Available-for-sale Securities, Gross Unrealized Losses
Fair value
Available-for-sale Securities, Fair Value Disclosure
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year
Goodwill and indefinite-lived intangibles
Goodwill and Indefinite-Lived Intangibles
Goodwill and Indefinite-Lived Intangibles
Definite-lived intangible assets
Finite-Lived Intangible Assets, Gross
Less accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Definite-lived intangible assets, net
Finite-Lived Intangible Assets, Net
Total goodwill and intangibles, net
Intangible Assets, Net (Including Goodwill)
Amortization expense
Amortization of Intangible Assets
Total amortization expense over the next three years
Finite-Lived Intangible Assets, Amortization Expense, Next Three Years
Finite-Lived Intangible Assets, Amortization Expense, Next Three Years
Class of Warrant or Right [Table]
Class of Warrant or Right [Table]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Domain]
Class of Warrant or Right [Domain]
$1.125 Exercise Price
Exercise Price One [Member]
Exercise Price One [Member]
$2.250 Exercise Price
Exercise Price Two [Member]
Exercise Price Two [Member]
$2.835 Exercise Price
Exercise Price Three [Member]
Exercise Price Three [Member]
$2.925 Exercise Price
Exercise Price Four [Member]
Exercise Price Four [Member]
$9.000 Exercise Price
Exercise Price Five [Member]
Exercise Price Five [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right [Line Items]
Warrant purchase rights
Class of Warrant or Right, Number of Securities Called by Warrants or Rights
Warrants exercised during period
Warrants Exercised
Warrants exercised during period.
Warrants outstanding
Class of Warrant or Right, Outstanding
Exercise price of warrants
Class of Warrant or Right, Exercise Price of Warrants or Rights
Accrued Liabilities
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Income Tax Reconciliation, Amount:
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Computed expected federal tax expense
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate
State taxes, net of federal benefit
Income Tax Reconciliation, State and Local Income Taxes
Permanent differences
Income Tax Rate Reconciliation, Permanent Differences
Income Tax Rate Reconciliation, Permanent Differences
Uncertain tax positions
Income Tax Reconciliation, Tax Contingencies
Other
Income Tax Reconciliation, Other Reconciling Items
Total
Income Tax Reconciliation, Percent:
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Computed expected federal tax expense
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate
State taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes
Permanent differences
Effective Income Tax Rate Reconciliation, Permanent Differences
Effective Income Tax Rate Reconciliation, Permanent Differences
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Tax Contingencies
Other
Effective Income Tax Rate Reconciliation, Other Adjustments
Income tax expense
Weighted average exercise price per share (in USD per share)
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Expected dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Expected volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Forfeiture rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Forfeiture Rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Forfeiture Rate
Weighted average grant date fair value per share (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Corporate Notes and Bonds
Corporate Debt Securities [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Level 3
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities
Available-for-sale Securities
Other investments and securities, at cost
Other Investments and Securities, at Cost
Investments
Investments
Valuation and Qualifying Accounts Disclosure [Table]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves [Domain]
Valuation Allowances and Reserves [Domain]
Allowance for Doubtful Accounts Receivable
Allowance for Doubtful Accounts, Current [Member]
Allowance for Doubtful Student Loans Receivable
Allowance for Notes Receivable [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation and Qualifying Accounts Disclosure [Line Items]
Movement in Valuation Allowances and Reserves [Roll Forward]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance
Valuation Allowances and Reserves, Balance
Charged to Expense
Valuation Allowances and Reserves, Charged to Cost and Expense
Deductions
Valuation Allowances and Reserves, Deductions
Ending Balance
Balance Sheet Parenthetical [Abstract]
Balance Sheet Parenthetical [Abstract]
Stockholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, par value per share
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Preferred stock, shares issued
Preferred Stock, Shares Issued
Preferred stock, shares outstanding
Preferred Stock, Shares Outstanding
Common stock, par value per share
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized
Common Stock, Shares Authorized
Common stock, shares issued
Common Stock, Shares, Issued
Common stock, shares outstanding
Common Stock, Shares, Outstanding
Treasury stock, shares at cost
Treasury Stock, Shares
Income Taxes
Income Tax Disclosure [Text Block]
Lease Obligations
Leases of Lessee Disclosure [Text Block]
Earnings Per Share Reconciliation [Abstract]
Numerator:
Net Income (Loss) Attributable to Parent [Abstract]
Denominator:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Effect of dilutive options and restricted stock units (in shares)
Incremental Common Shares Attributable to Share-based Payment Arrangements
Effect of dilutive warrants (in shares)
Incremental Common Shares Attributable to Call Options and Warrants
Diluted weighted average number of common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Earnings per share:
Basic earnings per share (in USD per share)
Diluted earnings per share (in USD per share)
Warrants
Stockholders' Equity Note Disclosure [Text Block]
Unrealized losses on investments, before-tax amount
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent
Unrealized losses on investments, tax benefit
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent
Unrealized losses on investments, net-of-tax amount
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Deferred tax assets:
Deferred Tax Assets, Gross [Abstract]
Net operating loss
Deferred Tax Assets, Operating Loss Carryforwards
Fixed assets
Deferred Tax Assets, Property, Plant and Equipment
Bad debt
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts
Vacation accrual
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Compensated Absences
Stock-based compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost
Deferred rent
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent
State tax
Deferred Tax Assets, State Taxes
Bonus accrual
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Bonuses
Unearned interest
Deferred Tax Assets, Unearned Interest
Deferred Tax Assets, Unearned Interest
Unrealized loss on investments
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross
Other
Deferred Tax Assets, Other
Total deferred tax assets
Deferred Tax Assets, Gross
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Net deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Deferred tax liabilities:
Deferred Tax Liabilities, Net [Abstract]
Fixed assets and intangibles
Deferred Tax Liabilities, Fixed Assets and Intangibles
Deferred Tax Liabilities, Fixed Assets and Intangibles
Unrealized gain on investments
Deferred Tax Liabilities, Other Comprehensive Income
Total deferred tax liabilities
Deferred Tax Liabilities, Net
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Computation of Basic and Diluted Earnings Per Common Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Antidilutive Securities
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Summary of Significant Accounting Policies
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Compensation and Retirement Disclosure [Abstract]
Retirement Plans
Compensation and Employee Benefit Plans [Text Block]
Class of Stock Disclosures [Abstract]
Class of Treasury Stock [Table]
Class of Treasury Stock [Table]
Share Repurchase Program [Axis]
Share Repurchase Program [Axis]
Share Repurchase Program [Domain]
Share Repurchase Program [Domain]
2010 Repurchase Program
Share Repurchase Program 2010 [Member]
Share Repurchase Program 2010 [Member]
2011 Repurchase Program
Share Repurchase Program 2011 [Member]
Share Repurchase Program 2011 [Member]
2012 Repurchase Program
Share Repurchase Program 2012 [Member]
Share Repurchase Program 2012 [Member]
Equity, Class of Treasury Stock [Line Items]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount
Stock Repurchase Program, Authorized Amount
Stock repurchase program, period in force
Stock Repurchase Program, Period in Force
Shares repurchased
Treasury Stock, Shares, Acquired
Shares repurchased, weighted average cost per share
Treasury Stock Acquired, Average Cost Per Share
Shares repurchased, total cost
Repurchase of common stock
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Admissions advisory and marketing
Marketing and Advertising Expense
General and administrative
General and Administrative Expense
Total costs and expenses
As Originally Reported
Scenario, Originally Reported [Member]
Scenario, Originally Reported [Member]
Original Restatement Adjustment
Original Restatement Adjustment [Member]
Original Restatement Adjustment [Member]
Regulatory [Abstract]
Regulatory [Abstract]
Regulatory
Regulatory [Text Block]
Regulatory Disclosure [Text Block]
Prepaid Expenses and Other Current Assets
Schedule of Other Current Assets [Table Text Block]
Schedule of Quarterly Financial Information
Schedule of Quarterly Financial Information [Table Text Block]
Reclassification
Reclassification [Table Text Block]
[Table Text Block] for Reclassification [Table]
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Investments
Available-for-sale Securities, Current
Accounts receivable, net
Deferred income taxes
Deferred Tax Assets, Net, Current
Prepaid expenses and other current assets
Total current assets
Property and equipment, net
Investments
Available-for-sale Securities, Noncurrent
Student loans receivable, net
Goodwill and intangibles, net
Deferred income taxes
Deferred Tax Assets, Net, Noncurrent
Other long-term assets
Other Assets, Noncurrent
Total assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Deferred revenue and student deposits
Total current liabilities
Rent liability
Accrued Rent, Noncurrent
Other long-term liabilities
Other Liabilities, Noncurrent
Total liabilities
Commitments and contingencies (see Note 20)
Commitments and Contingencies
Preferred stock, $0.01 par value:
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
20,000 shares authorized; zero shares issued and outstanding at both December 31, 2012, and December 31, 2011
Preferred Stock, Value, Issued
Common stock, $0.01 par value:
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
300,000 shares authorized; 61,406 issued and 54,099 outstanding at December 31, 2012; 58,981 issued and 51,731 outstanding at December 31, 2011
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital, Common Stock
Accumulated other comprehensive gain (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Treasury stock, 7,307 shares at cost at December 31, 2012, and 7,250 shares at cost at December 31, 2011
Treasury Stock, Value
Total stockholders' equity
Total liabilities and stockholders' equity
Accrued salaries and wages
Accrued Salaries, Current
Accrued bonus
Accrued Bonuses, Current
Accrued vacation
Accrued Vacation, Current
Accrued expenses
Other Accrued Liabilities, Current
Accrued income taxes payable
Accrued Income Taxes, Current
Total accrued liabilities
Stock Repurchase Program
Treasury Stock [Text Block]
Deferred Revenue and Student Deposits
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Reclassification
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Regulatory [Table]
Regulatory [Table]
Regulatory [Table]
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Ashford University
Ashford University [Member]
Ashford University [Member]
University of the Rockies
University of the Rockies [Member]
University of the Rockies [Member]
Regulatory [Line Items]
Regulatory [Line Items]
Regulatory [Line Items]
Higher Learning Commission Information:
Accreditation Agency Information [Abstract]
Accreditation Agency Information [Abstract]
Number of states in north central region governed by Higher Learning Commission
Region Governed by Accreditation Agency, Number of States
Region Governed by Accreditation Agency, Number of States
Number of indicator conditions monitored by Higher Learning Commission
Accreditation, Regulatory Terms, Number of Indicator Conditions Monitored by Accreditation Agency
Accreditation, Regulatory Terms, Number of Indicator Conditions Monitored by Accreditation Agency
Number of indicator conditions met
Accreditation, Regulatory Compliance, Number of Indicator Conditions Met
Accreditation, Regulatory Compliance, Number of Indicator Conditions Met
Indicator condition, maximum increase in number of degrees awarded compared to prior year, percentage
Accreditation, Regulatory Terms, Indicator Condition, Maximum Increase in Number of Degrees Awarded Compared to Prior Year, Percentage
Accreditation, Regulatory Terms, Indicator Condition, Maximum Increase in Number of Degrees Awarded Compared to Prior Year, Percentage
Indicator condition, maximum increase in number of full-time faculty compared to prior year, percentage
Accreditation, Regulatory Terms, Indicator Condition, Maximum Increase in Number of Full-time Faculty Compared to Prior Year, Percentage
Accreditation, Regulatory Terms, Indicator Condition, Maximum Increase in Number of Full-time Faculty Compared to Prior Year, Percentage
Indicator condition, minimum ratio of full-time faculty to number of degree programs
Accreditation, Regulatory Terms, Indicator Condition, Minimum Ratio of Full-time Faculty to Number of Degree Programs
Accreditation, Regulatory Terms, Indicator Condition, Minimum Ratio of Full-time Faculty to Number of Degree Programs
The 90-10 Rule:
The 90-10 Rule [Abstract]
The 90-10 Rule [Abstract]
Title IV eligibility, maximum allowable percentage of revenue from Title IV programs over two consecutive years
Revenue, Regulatory Terms, Title 4 Eligibility, Maximum Allowable Percentage of Revenue Over Two Consecutive Fiscal Years From Title 4 Programs
Revenue, Regulatory Terms, Title 4 Eligibility, Maximum Allowable Percentage of Revenue Over Two Consecutive Fiscal Years From Title 4 Programs
Title IV eligibility, minimum term of ineligibility once noncompliant
Revenue, Regulatory Terms, Title 4 Eligibility, Minimum Term of Ineligibility Once Noncompliant
Revenue, Regulatory Terms, Title 4 Eligibility, Minimum Term of Ineligibility Once Noncompliant
Title IV eligibility, maximum allowable percentage of revenue from Title IV programs in any single year
Revenue, Regulatory Terms, Title 4 Probationary Trigger, Maximum Allowable Percentage of Revenue From Title 4 Programs in any Single Year
Revenue, Regulatory Terms, Title 4 Probationary Trigger, Maximum Allowable Percentage of Revenue From Title 4 Programs in any Single Year
Actual percentage of revenue from Title IV programs
Revenue, Regulatory Compliance, Percentage of Revenue From Title 4 Programs
Revenue, Regulatory Compliance, Percentage of Revenue From Title 4 Programs
Cohort Default Rate:
Cohort Default Rate [Abstract]
Cohort Default Rate [Abstract]
Maximum allowable cohort default rate over 3-year period
Eligibility for Participation in Direct Loan and Pell Programs, Regulatory Terms, Maximum Allowable Cohort Default Rate Over Three Year Period
Eligibility for Participation in Direct Loan and Pell Programs, Regulatory Terms, Maximum Allowable Cohort Default Rate Over Three Year Period
Maximum allowable cohort default rate in any single year
Eligibility for Participation in Direct Loan Program, Regulatory Terms, Maximum Allowable Cohort Default Rate for any Single Year
Eligibility for Participation in Direct Loan Program, Regulatory Terms, Maximum Allowable Cohort Default Rate for any Single Year
Actual cohort default rate
Eligibility for Participation in Direct Loan and Pell Programs, Regulatory Compliance, Cohort Default Rate
Eligibility for Participation in Direct Loan and Pell Programs, Regulatory Compliance, Cohort Default Rate
Return of Title IV Funds:
Return of Title 4 Funds [Abstract]
Return of Title 4 Funds [Abstract]
Deadline for return of unearned funds after student withdrawal
Unearned Title 4 Funds, Regulatory Terms, Deadline for Return of Unearned Funds After Student Withdrawal
Unearned Title 4 Funds, Regulatory Terms, Deadline for Return of Unearned Funds After Student Withdrawal
Unearned Title IV funds, trigger for letter of credit requirement, noncompliance of return of funds, maximum allowable percentage in either of last two annual audits
Unearned Title 4 Funds, Regulatory Terms, Trigger for Letter of Credit Requirement, Noncompliance of Return of Funds, Maximum Allowable Percentage in Either of Last Two Annual Audits
Unearned Title 4 Funds, Regulatory Terms, Trigger for Letter of Credit Requirement, Noncompliance of Return of Funds, Maximum Allowable Percentage in Either of Last Two Annual Audits
Unearned Title IV funds, noncompliance of return of funds, required letter of credit as percentage of required returns
Unearned Title 4 Funds, Regulatory Terms, Noncompliance of Return of Funds, Required Letter of Credit as Percentage of Required Returns
Unearned Title 4 Funds, Regulatory Terms, Noncompliance of Return of Funds, Required Letter of Credit as Percentage of Required Returns
Unearned Title IV funds, actual percentage of noncompliance with return of funds requirement (less than 5%)
Unearned Title 4 Funds, Regulatory Compliance, Percentage of Noncompliance with Return of Funds Requirement
Unearned Title 4 Funds, Regulatory Compliance, Percentage of Noncompliance with Return of Funds Requirement
Composite score
Eligibility for Title 4 Programs, Regulatory Compliance, Composite Score
Eligibility for Title 4 Programs, Regulatory Compliance, Composite Score
Estimated composite score
Eligibility for Title 4 Programs, Regulatory Compliance, Estimated Composite Score
Eligibility for Title 4 Programs, Regulatory Compliance, Estimated Composite Score
Concentration Risk [Table]
Concentration Risk [Table]
Concentration Risk [Line Items]
Concentration Risk [Line Items]
Cash and cash equivalents, FDIC insurance limit
Cash and Cash Equivalents, FDIC Insurance, Amount Insured, Maximum
Cash and Cash Equivalents, FDIC Insurance, Amount Insured, Maximum
Quarterly Results of Operations (Unaudited)
Quarterly Financial Information [Text Block]
Minimum
Minimum [Member]
Property and equipment, estimated useful lives
Property, Plant and Equipment, Useful Life
Rent expense under non-cancelable operting lease arrangements
Operating Leases, Rent Expense
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2014
Operating Leases, Future Minimum Payments, Due in Two Years
2015
Operating Leases, Future Minimum Payments, Due in Three Years
2016
Operating Leases, Future Minimum Payments, Due in Four Years
2017
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total minimum payments
Operating Leases, Future Minimum Payments Due
Current:
Current Income Tax Expense (Benefit) [Abstract]
Federal
Current Federal Tax Expense (Benefit)
State
Current State and Local Tax Expense (Benefit)
Current income tax expense (benefit)
Current Income Tax Expense (Benefit)
Deferred:
Deferred Income Tax Expense (Benefit) [Abstract]
Federal
Deferred Federal Income Tax Expense (Benefit)
State
Deferred State and Local Income Tax Expense (Benefit)
Deferred income tax expense (benefit)
Expense related to 401(k) plan
Defined Contribution Plan, Cost Recognized
Costs and expenses:
Costs and Expenses [Abstract]
Operating income
Other income, net
Other Nonoperating Income (Expense)
Net income
Weighted average number of common shares outstanding used in computing earnings per common share:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)
Diluted (in shares)