0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Changes in Equity (Deficit) (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Business organization link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of significant accounting policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Goodwill and intangible assets link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Long-term debt link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Revenue from contract with customers link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Related party transactions link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Stockholders' equity link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Earnings per share link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Segments link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Corporate-owned and franchisee-owned clubs link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Goodwill and intangible assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Long-term debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Revenue from contract with customers (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Related party transactions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Earnings per share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Income taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Corporate-owned and franchisee-owned clubs (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Business organization (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Investments - Schedule of Amortized Cost, Gross Unrealized Gains (Losses), and Fair Value of Cash Equivalents and Marketable Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Investments - Schedule of Amortized Cost, Gross Unrealized Gains (Losses), and Fair Value of Cash Equivalents and Marketable Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Investments - Schedule of Roll forward of Allowance for Expected Credit Losses on Held-to-maturity Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Goodwill and intangible assets - Schedule of Changes in the Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Goodwill and intangible assets - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Goodwill and intangible assets - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Goodwill and intangible assets - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Goodwill and intangible assets - Schedule of Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Long-term debt - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Long-term debt - Schedule of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Long-term debt - Schedule of Future Principal Payments of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Long-term debt - Schedule of Carrying Value and Estimated Fair Value of Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Long-term debt - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Leases - Schedule of Balance Sheet Classification of Lease Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Leases - Schedule of Components of Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Leases - Schedule of Supplemental Disclosures of Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Leases - Schedule of Maturities of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Leases - Schedule of Maturities of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Leases - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Revenue from contract with customers - Schedule of Contract Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Revenue from contract with customers - Schedule of Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Revenue from contract with customers - Schedule of Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Revenue from contract with customers - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Related party transactions - Schedule of Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Related party transactions - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Stockholders' equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Earnings per share - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Earnings per share - Schedule of Reconciliation of Numerators and Denominators Used to Compute Basic and Diluted Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Earnings per share - Schedule of Common Stock Equivalents Excluded From The Computation Of Diluted Net Income per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Income taxes - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Income taxes - Schedule of Deferred Tax Assets and Tax Benefit Arrangement Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Income taxes - Schedule of Future Payments Under Tax Benefit Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Segments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Segments - Schedule of Financial Information for the Company's Reportable Segments (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segments- Schedule of Significant Expense Categories (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segments- Schedule of Significant Expense Categories (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Segments - Schedule of Reconciliation of Total Segment Adjusted EBITDA to Income Before Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Segments - Schedule of Geographical Revenue & Long- Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Corporate-owned and franchisee-owned clubs - Schedule of Changes in Corporate-owned and Franchisee-owned Clubs (Details) link:presentationLink link:calculationLink link:definitionLink