Document and Entity Information [Abstract] Statement, Equity Components [Axis] Equity Component [Domain] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowance Accounts Receivable, Net, Current Prepaid expenses Prepaid Expense, Current Income taxes receivable Income Taxes Receivable, Current Other current assets Other Assets, Current Total current assets Assets, Current, Total Total current assets Property and equipment, net Property, Plant and Equipment, Net Deferred income taxes Deferred Tax Assets, Net, Noncurrent Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Other long-term assets Other Assets, Noncurrent Other long-term assets Total assets Assets, Total Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Current portion of long-term debt Long-term Debt, Current Maturities Accounts payable and other accrued expenses Accounts Payable and Accrued Liabilities, Current Accrued compensation and benefits Employee-related Liabilities, Current Deferred income taxes Deferred Tax Liabilities, Current Other current liabilities Other Liabilities, Current Other current liabilities Total current liabilities Liabilities, Current, Total Total current liabilities Long-term debt, net of current portion Long-term Debt, Excluding Current Maturities Income tax reserve Accrued Income Taxes, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Other long-term liabilities Total liabilities Liabilities, Total Total liabilities Commitments and contingencies (Note 19) Commitments and Contingencies Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Statement [Table] Class of Stock [Axis] Class of Stock [Domain] Common Stock [Member] Common Class A [Member] Class A Common Stock Common stock, Class A Statement [Line Items] Common stock Common Stock, Value, Issued Common stock, par value 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 Common Class B [Member] Class B Non-Voting Common Stock Non-voting common stock, Class B Common Class C [Member] Class C Restricted Common Stock Restricted common stock, Class C Common Class E [Member] Class E Special Voting Common Stock Special voting common stock, Class E Common Class E Treasury stock, at cost - 333,775 shares at March 31, 2012 and 0 shares at March 31, 2011 Treasury Stock, Value Treasury stock, shares Treasury Stock, Shares Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Total stockholders' equity Stockholders' Equity Attributable to Parent, Total Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity, Total Total liabilities and stockholders' equity Revenue Sales Revenue, Services, Net Operating costs and expenses: Costs and Expenses [Abstract] Cost of revenue Cost of Services Billable Expenses Billable expenses Billable expenses General and administrative expenses General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization Depreciation and amortization Total operating costs and expenses Costs and Expenses, Total Total operating costs and expenses Operating income Operating Income (Loss) Operating income Interest expense Interest Expense Interest expense Other, net Other Nonoperating Income (Expense) Other, net Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes Income tax expense Income Tax Expense (Benefit) Income tax expense Net income Net Income (Loss) Attributable to Parent Net income Earnings per common share (Note 3): Earnings Per Share [Abstract] Basic Earnings Per Share, Basic Basic Diluted Earnings Per Share, Diluted Diluted Dividends declared per share Common Stock, Dividends, Per Share, Declared Actuarial loss related to employee benefits, net of taxes (Note 14) Actuarial loss related to employee benefits, net of taxes Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net (Gain) Loss Recognized in Net Periodic Benefit Cost, Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income 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 to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Gain on sale of state and local transportation business Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Gain on sale of state and local transportation business Transaction Cost on Sale of Business Transaction costs on sale of state and local transportation business Transaction costs on sale of state and local transportation business Amortization of debt issuance costs Amortization of Financing Costs Amortization of original issuance discount on debt Amortization of Debt Discount (Premium) Non Cash Expense of Debt Repayments Non-cash expense of debt repayments Non-cash expense of debt repayments Non-cash expense of debt repayments Excess tax benefits from the exercise of stock options Excess Tax Benefit from Share-based Compensation, Operating Activities Excess tax benefits from the exercise of stock options Stock-based compensation expense Share-based Compensation Loss on disposition of property and equipment Gain (Loss) on Disposition of Property Loss on disposition of property and equipment Deferred income taxes Deferred Income Tax Expense (Benefit) Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Accounts receivable, net Income taxes receivable / payable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Prepaid expenses Increase (Decrease) in Prepaid Expense Prepaid expenses Other current assets Increase (Decrease) in Other Current Assets Other current assets Other long-term assets Increase (Decrease) in Other Noncurrent Assets Other long-term assets Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued interest Increase (Decrease) in Interest Payable, Net Income tax reserve Increase (Decrease) in Income Taxes Payable Other current liabilities Increase (Decrease) in Other Operating Liabilities Postretirement obligations Increase (Decrease) in Postretirement Obligations Other long-term liabilities Increase (Decrease) in Other Noncurrent Liabilities Other long-term liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Payments for Escrow Deposits Escrow payments Escrow payments Escrow payments Proceeds from sale of state and local transportation business Proceeds from Divestiture of Businesses Proceeds from sale of state and local transportation business Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net proceeds from issuance of common stock Proceeds from Issuance of Common Stock Cash dividends paid Payments of Dividends, Common Stock Cash dividends paid Repayment of debt Repayments of Debt Repayment of debt Net proceeds from debt Proceeds from Issuance of Long-term Debt Payment of Deferred Payment Obligation Payment of deferred payment obligation Payment of deferred payment obligation Payment of deferred payment obligation Excess tax benefits from the exercise of stock options Excess Tax Benefit from Share-based Compensation, Financing Activities Stock option exercises Proceeds from Stock Options Exercised Repurchases of common stock Payments for Repurchase of Common Stock Repurchases of common stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Cash and cash equivalents--beginning of period Cash and cash equivalents--end of period Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Cash Payments Abstract Cash paid during the period for: Cash paid during the period for: Interest Interest Paid Interest Income Taxes Paid, Net Income taxes Income taxes, net Balance, shares Balance Balance Treasury Stock [Member] Treasury Stock Additional Paid-in Capital [Member] Additional Paid-In Capital Retained Earnings [Member] (Accumulated Deficit) Retained Earnings Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income (Loss) Issuance of common stock, shares Stock Issued During Period, Shares, New Issues Stock options exercised, shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock options exercised Stock Issued During Period, Value, Stock Options Exercised Adjustments to Additional Paid in Capital Recognition of Liability Related to Future Stock Option Exercises Recognition of liability related to future stock option exercises (Note 17) Recognition of liability related to future stock option exercises (Note 17) Recognition of liability related to future stock option exercises (Note 17) Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Dividends paid (Notes 1 and 17) Dividends, Common Stock Dividends paid (Notes 1 and 17) Excess tax benefits from the exercise of stock options Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Balance, shares Balance Issuance of common stock Stock Issued During Period, Value, New Issues Stock Issued During Period Shares Share Exchange Share exchange, shares Share exchange, shares Stock Issued During Period Value Share Exchange Share exchange Share exchange Repurchase of common stock, shares Stock Repurchased and Retired During Period, Shares Repurchase of common stock, shares Repurchase of common stock Stock Repurchased and Retired During Period, Value Repurchase of common stock Dividends paid (Note 16) Dividends, Cash Dividends paid (Note 16) OVERVIEW Nature of Operations [Text Block] Overview [Abstract] Overview [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Abstract] EARNINGS PER SHARE Earnings Per Share [Text Block] RESTRUCTURING CHARGE Restructuring and Related Activities Disclosure [Text Block] Restructuring Charge [Abstract] Restructuring Charge [Abstract] GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Intangible Assets [Abstract] Goodwill and Intangible Assets [Abstract] ACCOUNTS RECEIVABLE,NET Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Accounts Receivable, Net [Abstract] Accounts Receivable, Net [Abstract] PROPERTY AND EQUIPMENT, NET Property, Plant and Equipment Disclosure [Text Block] Property and Equipment, Net [Abstract] Property and Equipment, Net [Abstract] ACCOUNTS PAYABLE AND OTHER ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts Payable and Other Accrued Expenses [Abstract] Accounts Payable and Other Accrued Expenses [Abstract] Accrued Compensation and Benefits [Text Block] ACCRUED COMPENSATION AND BENEFITS ACCRUED COMPENSATION AND BENEFITS Accrued Compensation and Benefits [Abstract] Accrued Compensation and Benefits [Abstract] ACCRUED COMPENSATION AND BENEFITS DEFERRED PAYMENT OBLIGATION Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Noncurrent [Text Block] Deferred Payment Obligation [Abstract] Deferred Payment Obligation [Abstract] DEBT Debt Disclosure [Text Block] Debt [Abstract] Debt [Abstract] Deferred Financing Costs Disclosure [Text Block] DEFERRED FINANCING COSTS DEFERRED FINANCING COSTS Deferred Financing Costs [Abstract] Deferred Financing Costs [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Income Taxes [Abstract] Income Taxes [Abstract] EMPLOYEE BENEFIT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] Employee Benefit Plans [Abstract] Employee Benefit Plans [Abstract] OTHER LONG-TERM LIABILITIES Other Liabilities Disclosure [Text Block] Other Long-Term Liabilities [Abstract] Other Long-Term Liabilities [Abstract] STOCKHOLDERS' EQUITY Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity [Abstract] Stockholders' Equity [Abstract] STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation [Abstract] Stock-Based Compensation [Abstract] RELATED-PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Related-Party Transactions [Abstract] Related-Party Transactions [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies [Abstract] Commitments and Contingencies [Abstract] BUSINESS SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Business Segment Information [Abstract] Business Segment Information [Abstract] UNAUDITED QUARTERLY FINANCIAL DATA Quarterly Financial Information [Text Block] Unaudited Quarterly Financial data [Abstract] Unaudited Quarterly Financial data [Abstract] SUPPLEMENTAL FINANCIAL INFORMATION Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Supplemental Financial Information [Abstract] Supplemental Financial Information [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] Subsequent Events [Abstract] Subsequent Events [Abstract] Amendment Flag Current Fiscal Year End Date Document Period End Date Document Type Entity Central Index Key Entity Common Stock, Shares Outstanding Entity Current Reporting Status Entity Filer Category Entity Registrant Name Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Public Float Document Fiscal Period Focus Document Fiscal Year Focus Consolidated Balance Sheets [Abstract] Consolidated Statements of Operations [Abstract] Consolidated Statements of Comprehensive Income [Abstract] Consolidated Statements of Cash Flows [Abstract] Consolidated Statements of Stockholders' Equity [Abstract] Restructuring charge