Business Combinations - Meetrics (Details) - USD ($) $ in Thousands		9 Months Ended
Aug. 31, 2021	Sep. 30, 2021
Business Acquisition [Line Items]
Aggregate net cash purchase price		$ 24,323
Meetrics GmbH
Business Acquisition [Line Items]
Aggregate net cash purchase price	$ 24,300

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration