Fair Value of Financial Instruments - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - Fair Value, Recurring - Level 3 - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	$ 32,971	$ 15,572
Foreign currency translation of contingent consideration payment	(208)
Payment of contingent consideration payable	(12,464)	(554)
Acquisitions	45,204	31
Series A-2 compound embedded option	(9,361)
Issuance of warrant option	30,097
Changes in fair value included in earnings	34,879	3,389
Write off of the contingent put option	12,140
Exercise of the warrant options	(56,287)
Ending balance	76,971	18,438
Contingent Put Option
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	7,100
Changes in fair value included in earnings	(19,240)
Write off of the contingent put option	12,140
Embedded Option
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Series A-2 compound embedded option	(9,361)
Changes in fair value included in earnings	27,420
Ending balance	18,059
Business Acquisitions Contingent Consideration, Current
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	8,614	2,754
Foreign currency translation of contingent consideration payment	(208)
Payment of contingent consideration payable	(12,464)	(554)
Acquisitions	34,661	31
Reclass of long term to short term contingent liabilities	180
Changes in fair value included in earnings	18,387	(670)
Ending balance	49,170	1,561
Business Acquisitions Contingent Consideration, Long-Term
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	379
Acquisitions	10,543
Reclass of long term to short term contingent liabilities	(180)
Changes in fair value included in earnings	(1,000)
Ending balance	9,742
Warrant Options
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	16,878	12,818
Issuance of warrant option	30,097
Changes in fair value included in earnings	9,312	4,059
Exercise of the warrant options	$ (56,287)
Ending balance		$ 16,877

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- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis liability foreign currency translation of contingent consideration payment.

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No definition available.

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Fair value measurement with unobservable inputs reconciliation recurring basis liability reclass of long term to short term contingent liabilities.

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Fair value measurement with unobservable inputs reconciliation recurring basis liability write off of contingent put option.

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- Definition

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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- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Section 50
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Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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