0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Comprehensive Income/(Loss) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Description of Business and Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Employee Retention Credit link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - 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Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Earnings (Loss) Per Common Share link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Prepaid Expenses and Other Current Assets link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Other Accrued Expenses and Current Liabilities link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Other Contingencies link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Equity Method Investments link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Description of Business and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Description of Business and Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Allowance for Doubtful Accounts (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Changes in Accumulated Other Comprehensive Loss by Component (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Property and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Goodwill and Other Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Share-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Earnings (Loss) Per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Prepaid Expenses and Other Current Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Other Accrued Expenses and Current Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Description of Business and Significant Accounting Policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Description of Business and Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Employee Retention Credit (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Accounts and Notes Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Allowance for Doubtful Accounts - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Allowance for Doubtful Accounts - Schedule of Notes Receivable Disaggregated by Vintage Year (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Allowance for Doubtful Accounts - Schedule of Age Analysis of Past-Due Note Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Allowance for Doubtful Accounts - Schedule of Changes in Allowance for Notes Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Changes in Accumulated Other Comprehensive Loss by Component - 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Disclosure - Leases - Schedule of Future Minimum Lease Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Changes in Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Intangible Asset, Finite-Lived (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Estimated Amortization Expense for Intangibles Subject to Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Fair Value Measurements - Schedule of Contractual Maturities of Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Fair Value Measurements - Schedule of Marketable Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Fair Value Measurements - Schedule of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Fair Value Measurements - Schedule of Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Debt Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Share-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Share-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Share-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Share-Based Compensation - Schedule of Stock Options Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Share-Based Compensation - Schedule of Assumptions for Fair Value of Options Granted (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Share-Based Compensation - Schedule of Summarized Other Information About Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Share-Based Compensation - Schedule of Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Share-Based Compensation - Schedule of Outstanding Performance Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Share-Based Compensation - Schedule of Options Granted Under Employee Stock Purchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Share-Based Compensation - Schedule of Supplemental Employee Retirement Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Segment Information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Segment Information - Schedule of Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Earnings (Loss) Per Common Share - Schedule of Weighted Average Basic and Diluted Common Shares Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Earnings (Loss) Per Common Share - Schedule Anti-dilutive Outstanding Equity Awards Under Share Based Compensation Plans (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Other Accrued Expenses and Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Other Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Equity Method Investments (Details) link:presentationLink link:calculationLink link:definitionLink