Accounts payable and accrued liabilities Trade receivables, net of allowances of $33,044 and $36,994 Accretion of interest on deferred business acquisition obligations Property and equipment, accumulated depreciation Accumulated other comprehensive loss Other Comprehensive Loss Additional Paid in Capital Additional paid-in capital Additional Paid-In Capital Reconciliation of net income (loss) to net cash used in operating activities: Amortization of stock compensation Tax adjustments due to vestings and exercises Trade receivables, allowances Amendment Flag Amortization of debt issuance costs Total assets Total assets Assets Total current assets Total current assets Current assets: Disclosure related to the basis of presentation of financial statements, recently adopted and other recent accounting pronouncements, and to selected earnings per common share information. Interim Information Business Acquisition, Purchase Price Allocation, Current Liabilities, Long-term Debt Deferred business acquisition obligations Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt Deferred business acquisition obligations Business Combinations, Goodwill and Other Intangible Assets Cash and cash equivalents Cash and cash equivalents, June 30 Cash and cash equivalents, January 1 Net decrease in cash and cash equivalents Net decrease in cash and cash equivalents Non-cash financing activities: Cash Paid During Period For [Abstract] Cash paid during the period for: Commitments and contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock Held in Trust Shares held in trust Common Stock Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Common stock, $.01 par value per share, 100,000,000 shares authorized; 42,059,599 and 41,843,947 shares issued and outstanding Comprehensive Income (Loss) Current Fiscal Year End Date Debt Deferred compensation Deferred income Deferred tax assets Deferred tax assets, net Deferred Tax Liabilities, Current Deferred tax liabilities Deferred Tax Liabilities, Noncurrent Deferred tax liabilities Pension liabilities Depreciation and amortization Stock-based Compensation Dividends declared Dividends declared Document - Document and Entity Information [Abstract] Document - Document and Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Year Focus Document Period End Date Document Type Basic earnings (loss) per common share Diluted earnings (loss) per common share Earnings (Loss) Per Share and Net Income (Loss) Attributable to Common Shareholders Accrued compensation Entity Central Index Key Entity Common Stock, Shares Outstanding Entity [Domain] Entity Filer Category Entity Registrant Name Equity Component [Domain] Operating distributions from real estate ventures Equity Method Investments Disclosure [Text Block] Investments in Real Estate Ventures Excess tax adjustment from share-based payment arrangements Excess tax benefit from share-based payment arrangements Excess tax benefit from share-based payment arrangements Fair Value Measurements Identified intangibles, with finite useful lives, accumulated amortization Identified intangibles, with finite useful lives, net of accumulated amortization of $75,203 and $71,422 Gain on investments Gain on investments Goodwill, with indefinite useful lives Income from continuing operations before income taxes and noncontrolling interest Income (loss) before income taxes and noncontrolling interest Income (loss) before income taxes and noncontrolling interest Equity in losses from unconsolidated ventures Equity in losses from real estate ventures Income Statement [Abstract] Income taxes, net of refunds Provision (benefit) for income taxes Accounts payable, accrued liabilities and accrued compensation Increase (Decrease) in Deferred Income Taxes Deferred tax assets, net Change in: Prepaid expenses and other assets Prepaid expenses and other assets Receivables Receivables Interest expense, net of interest income Interest Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments in real estate ventures Compensation and benefits Legal Entity [Axis] Total liabilities Total liabilities Total liabilities and equity Total liabilities and equity Liabilities and Equity Total current liabilities Total current liabilities Current liabilities: Noncurrent liabilities: Long-term receivables, net Credit facilities Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling interest Decrease in amounts due to noncontrolling interest Decrease in amounts due to noncontrolling interest Minority Shareholder Redemption Liability, Noncurrent Minority shareholder redemption liability Net cash provided by financing activities Net cash provided by financing activities Cash flows from financing activities: Net cash used in investing activities Net cash used in investing activities Cash flows from investing activities: Net cash used in operating activities Net cash used in operating activities Cash flows from operating activities: Net income (loss) attributable to the Company Net income (loss) attributable to the Company Net income attributable to noncontrolling interest Net income (loss) attributable to common shareholders Noncontrolling Interest Notes and other receivables Notes to Financial Statements [Abstract] Notes to Financial Statements [Abstract] Total operating expenses Total operating expenses Operating expenses: Operating Income (Loss) Operating income (loss) Amortization of deferred compensation Other Assets, Current Other Other Assets, Noncurrent Other Foreign currency translation adjustments Operating, administrative and other Other Liabilities, Current Other Other Liabilities, Noncurrent Other Parent Company [Member] The cash outflow to reacquire common stock to satisfy employee tax withholding obligations during the period. Shares repurchased for payment of employee taxes on stock awards Shares repurchased for payment of employee taxes on stock awards Debt issuance costs Debt issuance costs Payment of dividends Payment of dividends Business acquisitions Business acquisitions Capital contributions and advances to real estate ventures Capital contributions and advances to real estate ventures Net capital additions - property and equipment Net capital additions - property and equipment Prepaid expenses Issuance of common stock, net Common stock issued under option and stock purchase programs Proceeds from borrowings under credit facilities Distributions, repayments of advances and sale of investments Net income Net income (loss) Net income (loss) Property and equipment, net of accumulated depreciation of $307,755 and $290,250 Provision for loss on receivables and other assets Repayments of borrowings under credit facilities Repayments of borrowings under credit facilities Restructuring Restructuring charges Retained Earnings (Accumulated Deficit) Retained earnings Retained Earnings Revenue Recognition Revenue Retirement Plans New Accounting Standards Business Segments Shares held in trust. Shares Held in Trust Number of shares of stock held by shareholders. Shares, Outstanding Ending Balance (in shares) Beginning Balance (in shares) Short-term borrowings Statement, Equity Components [Axis] Statement [Line Items] Statement of Cash Flows [Abstract] Statement of Financial Position [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Total Company shareholders' equity Total Company shareholders' equity Company shareholders' equity: Total equity Ending Balance Beginning Balance Total equity Shares issued under stock compensation programs (in shares) Shares issued under stock compensation programs Stock Issued During Period, Value, Shares Held in Trust of Employee Stock Ownership Plan (Deprecated 2009-01-31) Shares held in trust Stock Repurchased For Payment Of Taxes On Stock Awards During Period, Shares Shares repurchased for payment of taxes on stock awards (in shares) Cost of shares repurchased from employees for payroll taxes on shares issued under share-based compensation plans Shares repurchased for payment of taxes on stock awards Shares repurchased for payment of taxes on stock awards Supplemental acquisition fees and costs Supplemental acquisition fees and costs Deferred business acquisition obligations Supplemental disclosure of cash flow information: Trading Symbol Diluted weighted average shares outstanding Basic weighted average shares outstanding