Goodwill - Changes to Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill at beginning of period	$ 458,586	$ 457,649
Impact of changes in exchange rates and other	(499)	937
Goodwill at end of period	676,513	$ 458,586
Publica LLC
Goodwill [Line Items]
Acquisition	190,401
Norbora SAS
Goodwill [Line Items]
Acquisition	28,024
Goodwill at end of period	$ 28,024

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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