0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - UNAUDITED CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Nature of operations and summary of significant accounting policies link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Fair value link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Property and equipment, net link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Intangible assets, net link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Accrued expenses and other current liabilities link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Revenues link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Stockholders’ equity link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Earnings/(loss) per share link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Segment and geographic information link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Subsequent events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Nature of operations and summary of significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Fair value (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Property and equipment, net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Intangible assets, net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Accrued expenses and other current liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Revenues (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Stockholders’ equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Earnings/(loss) per share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Segment and geographic information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Nature of operations and summary of significant accounting policies - Allowance (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Acquisitions - Overview of transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Acquisitions - Assets acquired and liabilities assumed (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Acquisitions - Intangible assets acquired (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Fair value - Schedule of Fair Value Information for Financial Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Fair value - Measurement inputs (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Fair value - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Fair value - Reconciliation of Acquisition-Related Contingent Consideration Payable (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Property and Equipment, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Intangible assets, net - Summary of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Intangible assets, net - Future Amortization Expenses (Detail) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Accrued expenses and other current liabilities - Components of Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Debt - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Revenues - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Revenues - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Revenues - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Revenues - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Revenues - Concentration Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Revenues - Related Parties (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Leases - Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Leases - Schedule of Supplemental Lease Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Leases - Operating Lease Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Leases - Operating Lease Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Income taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Stockholders’ equity - Schedule of employee stock-based compensation recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Stockholders’ equity - Schedule of employee stock-based compensation recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Stockholders’ equity - Schedule of option activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Stockholders’ equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Stockholders’ equity - Schedule of restricted stock unit and performance stock unit activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Stockholders’ equity - Share repurchase program (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Earnings/(loss) per share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Earnings/(loss) per share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Segment and geographic information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segment and geographic information - Schedule of revenues by customer location (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Segment and geographic information - Schedule of long-lived assets by physical location (Details) link:presentationLink link:calculationLink link:definitionLink