0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Statements of Operations (Alternate Calc) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Long-term Debt link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Redeemable Noncontrolling Interests link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Share-Based Payments link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Earnings per Common Share link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Contingencies and Other Commitments link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Basis of Presentation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Variable Interest Entities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Marketable Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Long-term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Redeemable Noncontrolling Interests (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Earnings per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Basis of Presentation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Basis of Presentation - Net Operating Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Variable Interest Entities - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Variable Interest Entities - Schedule of Carrying Amounts and Classification of Consolidated VIEs (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Marketable Securities - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Marketable Securities - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Marketable Securities - Schedule of Available-for-sale Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Marketable Securities - Schedule of Investing Information Related to Marketable Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Marketable Securities - Scheduled Maturities of Investments in Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Long-term Debt - Schedule of Long-term Debt Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Long-term Debt - Schedule of Long-term Debt Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Long-term Debt - Schedule of Principal Payments Due on Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Long-term Debt - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Redeemable Noncontrolling Interests - Schedule of Redeemable Noncontrolling Interests Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Redeemable Noncontrolling Interests - Schedule of Reconciliation of Noncontrolling Interests (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Fair Value Measurements - Schedule of Carrying Amounts and Estimated Fair Values, Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Share-Based Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Earnings per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Earnings per Common Share - Schedule of Reconciliation Between Basic and Diluted Weighted-average Common Shares Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Contingencies and Other Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Segment Reporting - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Segment Reporting - Schedule of Selected Financial Information of Reportable Segments (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Segment Reporting - Schedule of Reconciliation of Adjusted EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Segment Reporting - Schedule of Revenues of Operating Segments by Service Line (Details) link:presentationLink link:calculationLink link:definitionLink