Segment and Related Information - Identifiable Assets by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable assets	$ 888,149	$ 343,749
United States
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable assets	871,184	322,065
International
Segment Reporting, Asset Reconciling Item [Line Items]
Identifiable assets	$ 16,965	$ 21,684

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details