Amount of asset recognized arising from contingent consideration in a business combination.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 7
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Name:	us-gaap_BusinessCombinationContingentConsiderationAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Business Combinations - Narrative (Details) $ in Thousands, € in Millions			12 Months Ended
	Aug. 21, 2020 USD ($)	Aug. 21, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Aug. 21, 2020 EUR (€)
Business Acquisition [Line Items]
Acquisition of business, net of cash received			$ 6,036	$ 0	$ 27,067
Advanced Technical Solutions
Business Acquisition [Line Items]
Acquisition of business, net of cash received	$ 6,000	€ 5.1
Contingent consideration	$ 1,200					€ 1.0
Milestone term	3 years	3 years