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v3.22.2.2

Commitments and Contingencies - Additional Information (Detail) $ in Millions, $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 22, 2022 AUD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) lawsuit | Dec. 31, 2021 USD ($)
Litigation relating to occupancy tax |  |  |  |
Commitment And Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | lawsuit |  |  | 103 |
Number of lawsuits currently active | lawsuit |  |  | 8 |
Number of lawsuits dismissed to date | lawsuit |  |  | 49 |
Number of dismissals based on finding that defendant was not subject to local hotel occupancy tax or the local government lacked standing to pursue claims | lawsuit |  |  | 34 |
Reserve for legal contingencies | $ |  |  | $ 44 | $ 50
Breach of Australian consumer law | Affiliated Entity |  |  |  |
Commitment And Contingencies [Line Items] |  |  |  |
Trivago to pay penalty | $ | $ 44.7 |  |  |
Estimated probable loss | $ |  | $ 34 |  | $ 11
Estimate of possible loss, additions | $ |  | $ 23 |  |

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