Summary of significant accounting policies (Policies)	9 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]
Basis of presentation and consolidation	Basis of presentation and consolidation The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Accordingly, these interim financial statements do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented have been reflected. All significant intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements as of and for the three and nine months ended September 30, 2022 and 2021 are unaudited. The condensed consolidated balance sheet as of December 31, 2021 has been derived from the audited financial statements at that date but does not include all of the disclosures required by U.S. GAAP. These interim condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 (the “Annual Report”) filed with the SEC on March 1, 2021. The Company’s significant interim accounting policies include the proportional recognition of national advertising fund expenses within interim periods. Operating results for the interim periods are not necessarily indicative of the results that may be expected for the full year.
Use of estimates	Use of estimatesThe preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Although these estimates are based on management’s knowledge of current events and actions it may undertake in the future, they may ultimately differ from actual results. Significant areas where estimates and judgments are relied upon by management in the preparation of the consolidated financial statements include revenue recognition, valuation of equity-based compensation awards, valuation of long-lived and intangible assets acquired in a business combination, the evaluation of the recoverability of goodwill and long-lived assets, including intangible assets, income taxes, including deferred tax assets and liabilities and reserves for unrecognized tax benefits, the liability for the Company’s tax benefit arrangements, the value of the lease liability and related right-of-use asset recorded in accordance with ASC 842 (see Note 8) and the estimate of current expected credit losses.
Fair Value	Fair Value ASC 820, Fair Value Measurements and Disclosures, establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows: Level 1—Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2—Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement.
Recent accounting pronouncements	Recent accounting pronouncementsThe FASB issued ASU No. 2021-08, Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, in October 2021. The guidance improves the accounting for acquired revenue contracts with customers in a business combination by requiring contract assets and contract liabilities acquired in a business combination to be recognized and measured by the acquirer on the acquisition date in accordance with ASC Topic 606, Revenue from Contracts with Customers, as if the acquirer had originated the contracts. This guidance will be effective for fiscal years beginning after December 15, 2022, including interim periods within that year, with early adoption permitted. The Company early adopted this guidance as of January 1, 2022, for all acquisitions subsequent to the adoption date.
Investments	Investments - Debt securities As of September 30, 2022, the Company’s debt security investments consist of redeemable preferred shares that are accounted for as held-to-maturity debt securities. The Company’s investments are measured at amortized cost within Investments in the condensed consolidated balance sheets. The Company reviews its held-to-maturity securities for expected credit losses under ASC Topic 326, Credit Impairment, on an ongoing basis. During the three and nine months ended September 30, 2022, the Company’s review of the investee’s operations and financial position indicated that an adjustment to its allowance for expected credit losses was necessary. The Company utilized a probability-of-default (“PD”) and loss-given-default (“LGD”) methodology to calculate the allowance for expected credit losses. The Company derived its estimate using historical lifetime loss information for assets with similar risk characteristics, adjusted for management’s expectations. Adjustments for management’s expectations were based on the investee’s recent financial results, current financial position, and forward-looking financial forecasts. Based upon its analysis, the Company recorded a loss for the three months ended September 30, 2022 of $273 and a gain on the adjustment of its allowance for credit losses for the nine months ended September 30, 2022 of $1,572 within other (gains) losses, net on the consolidated statements of operations.

Summary of significant accounting policies (Policies)

9 Months Ended

Sep. 30, 2022

The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Accordingly, these interim financial statements do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented have been reflected. All significant intercompany balances and transactions have been eliminated in consolidation.

The condensed consolidated financial statements as of and for the three and nine months ended September 30, 2022 and 2021 are unaudited. The condensed consolidated balance sheet as of December 31, 2021 has been derived from the audited financial statements at that date but does not include all of the disclosures required by U.S. GAAP. These interim condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 (the “Annual Report”) filed with the SEC on March 1, 2021. The Company’s significant interim accounting policies include the proportional recognition of national advertising fund expenses within interim periods. Operating results for the interim periods are not necessarily indicative of the results that may be expected for the full year.

Use of estimates

Use of estimatesThe preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Although these estimates are based on management’s knowledge of current events and actions it may undertake in the future, they may ultimately differ from actual results. Significant areas where estimates and judgments are relied upon by management in the preparation of the consolidated financial statements include revenue recognition, valuation of equity-based compensation awards, valuation of long-lived and intangible assets acquired in a business combination, the evaluation of the recoverability of goodwill and long-lived assets, including intangible assets, income taxes, including deferred tax assets and liabilities and reserves for unrecognized tax benefits, the liability for the Company’s tax benefit arrangements, the value of the lease liability and related right-of-use asset recorded in accordance with ASC 842 (see Note 8) and the estimate of current expected credit losses.

Fair Value

ASC 820, Fair Value Measurements and Disclosures, establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows:

Level 1—Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2—Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.

Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Recent accounting pronouncements

Recent accounting pronouncementsThe FASB issued ASU No. 2021-08, Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, in October 2021. The guidance improves the accounting for acquired revenue contracts with customers in a business combination by requiring contract assets and contract liabilities acquired in a business combination to be recognized and measured by the acquirer on the acquisition date in accordance with ASC Topic 606, Revenue from Contracts with Customers, as if the acquirer had originated the contracts. This guidance will be effective for fiscal years beginning after December 15, 2022, including interim periods within that year, with early adoption permitted. The Company early adopted this guidance as of January 1, 2022, for all acquisitions subsequent to the adoption date.

Investments

Investments - Debt securities

As of September 30, 2022, the Company’s debt security investments consist of redeemable preferred shares that are accounted for as held-to-maturity debt securities. The Company’s investments are measured at amortized cost within Investments in the condensed consolidated balance sheets. The Company reviews its held-to-maturity securities for expected credit losses under ASC Topic 326, Credit Impairment, on an ongoing basis.

During the three and nine months ended September 30, 2022, the Company’s review of the investee’s operations and financial position indicated that an adjustment to its allowance for expected credit losses was necessary. The Company utilized a probability-of-default (“PD”) and loss-given-default (“LGD”) methodology to calculate the allowance for expected credit losses. The Company derived its estimate using historical lifetime loss information for assets with similar risk characteristics, adjusted for management’s expectations. Adjustments for management’s expectations were based on the investee’s recent financial results, current financial position, and forward-looking financial forecasts. Based upon its analysis, the Company recorded a loss for the three months ended September 30, 2022 of $273 and a gain on the adjustment of its allowance for credit losses for the nine months ended September 30, 2022 of $1,572 within other (gains) losses, net on the consolidated statements of operations.