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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accounting Policies [Line Items] |  |  |
Impairment losses for long lived assets | $ 0.0 |  |
Impairments goodwill | 0.0 |  |
Advertising costs | $ 118.1 | $ 101.1 | $ 103.9
Voting rights, percentage | 50.00% |  |
Concierge Receivables [Member] | Accounting Standards Update 2016-13 [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Increase in allowance for credit losses related to receivables | $ 5.6 |  |
Restricted Stock Units [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Share based compensation by share based payment arrangement service based vesting period | 4 years |  |
Restricted Stock Units [Member] | Maximum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Share based compensation by share based payment arrangement service based vesting period | 5 years |  |
Restricted Stock Units [Member] | Minimum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Share based compensation by share based payment arrangement service based vesting period | 4 years |  |

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- Definition Percentage of voting rights eligible for consolidation. + References No definition available. + Details
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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