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Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 111 - Disclosure - Organization and Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 112 - Disclosure - ACQUISITIONS link:calculationLink link:presentationLink link:definitionLink 113 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS link:calculationLink link:presentationLink link:definitionLink 114 - Disclosure - FIXED ASSETS link:calculationLink link:presentationLink link:definitionLink 115 - Disclosure - GOODWILL AND INTANGIBLE ASSETS link:calculationLink link:presentationLink link:definitionLink 116 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES link:calculationLink link:presentationLink link:definitionLink 117 - Disclosure - OTHER CURRENT LIABILITIES link:calculationLink link:presentationLink link:definitionLink 118 - Disclosure - OTHER LONG-TERM LIABILITIES link:calculationLink link:presentationLink link:definitionLink 119 - Disclosure - CREDIT ARRANGEMENTS AND DEBT OBLIGATIONS link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - REDEEMABLE NONCONTROLLING INTEREST link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - INCOME TAXES link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - EARNINGS PER SHARE link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - COMMITMENTS AND CONTINGENCIES link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - EMPLOYEE BENEFIT PLANS link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - TRANSACTIONS WITH RELATED PARTIES link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - QUARTERLY RESULTS (UNAUDITED) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Organization and Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Organization and Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - ACQUISITIONS (Tables) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - FIXED ASSETS (Tables) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Tables) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - OTHER CURRENT LIABILITIES (Tables) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - OTHER LONG-TERM LIABILITIES (Tables) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - CREDIT ARRANGEMENTS AND DEBT OBLIGATIONS (Tables) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - REDEEMABLE NONCONTROLLING INTEREST (Tables) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - INCOME TAXES (Tables) link:calculationLink link:presentationLink link:definitionLink 141 - Disclosure - STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Tables) link:calculationLink link:presentationLink link:definitionLink 142 - Disclosure - EARNINGS PER SHARE (Tables) link:calculationLink link:presentationLink link:definitionLink 143 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:calculationLink link:presentationLink link:definitionLink 144 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION (Tables) link:calculationLink link:presentationLink link:definitionLink 145 - Disclosure - QUARTERLY RESULTS (UNAUDITED) (Tables) link:calculationLink link:presentationLink link:definitionLink 146 - Disclosure - Organization and Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 147 - Disclosure - Carrying and Fair Value of Long-Term Debt (Detail) link:calculationLink link:presentationLink link:definitionLink 148 - Disclosure - Activity in Allowance for Doubtful Accounts (Detail) link:calculationLink link:presentationLink link:definitionLink 149 - Disclosure - Acquisitions - 2010 Acquisitions - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 150 - Disclosure - Fair Value of Assets Acquired (Detail) link:calculationLink link:presentationLink link:definitionLink 151 - Disclosure - Acquisitions - 2011 Acquisitions - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 152 - Disclosure - Acquisitions - Summary of Operating Results (Detail) link:calculationLink link:presentationLink link:definitionLink 153 - Disclosure - 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Intangible Assets Subject to Amortization (Detail) link:calculationLink link:presentationLink link:definitionLink 161 - Disclosure - Goodwill and Intangible Assets - Estimated Amortization Expense Related to Intangible Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 162 - Disclosure - Accounts Payable and Accrued Expenses (Detail) link:calculationLink link:presentationLink link:definitionLink 163 - Disclosure - Other Current Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 164 - Disclosure - Summary of Other Long-Term Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 165 - Disclosure - Borrowing Arrangements - Outstanding Borrowing (Detail) link:calculationLink link:presentationLink link:definitionLink 166 - Disclosure - Credit Arrangements and Debt Obligations - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 167 - Disclosure - Redeemable Noncontrolling Interest - 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Disclosure - Reconciliation of Unrecognized Tax Benefits (Detail) link:calculationLink link:presentationLink link:definitionLink 176 - Disclosure - Stockholder's Equity and Stock-Based Compensation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 177 - Disclosure - Reconciliation of Changes In Class L Common Stock (Detail) link:calculationLink link:presentationLink link:definitionLink 178 - Disclosure - Stock Option Activity For Continuation Options (Detail) link:calculationLink link:presentationLink link:definitionLink 179 - Disclosure - Fair Value Of Stock Options (Detail) link:calculationLink link:presentationLink link:definitionLink 180 - Disclosure - Stock Option Activity Under Equity Plan (Detail) link:calculationLink link:presentationLink link:definitionLink 181 - Disclosure - Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) link:calculationLink link:presentationLink link:definitionLink 182 - Disclosure - Earnings (Loss) Per Share - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 183 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 184 - Disclosure - Future Minimum Payments Under Non-Cancelable Operating Leases (Detail) link:calculationLink link:presentationLink link:definitionLink 185 - Disclosure - Future Minimum Payments of Long-term Debt (Detail) link:calculationLink link:presentationLink link:definitionLink 186 - Disclosure - Employee Benefit Plans (Detail) link:calculationLink link:presentationLink link:definitionLink 187 - Disclosure - Segment And Geographic Information - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 188 - Disclosure - Segment Information - Income from Operations by Segment (Detail) link:calculationLink link:presentationLink link:definitionLink 189 - Disclosure - Revenue By Geographic Region (Detail) link:calculationLink link:presentationLink link:definitionLink 190 - Disclosure - Long-lived Assets By Geographic Region (Detail) link:calculationLink link:presentationLink link:definitionLink 191 - Disclosure - Transactions with Related Parties - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 192 - Disclosure - Quarterly Results (Detail) link:calculationLink link:presentationLink link:definitionLink