Amount of increase (decrease) in the value of right to a contingent consideration asset.

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Value of input used to measure contingent consideration liability from business combination.

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Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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Fair Value Measurements - Additional information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) Y	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) Y	Jun. 30, 2019 USD ($)
Fair value measurements
(Gain) Loss on Fair Value Remeasurement of Contingent Consideration	$ (5,132)	$ (1,017)	$ (4,898)	$ 502
Discount rate \| Weighted average
Fair value measurements
Measurement input	11.6		11.6
Discount rate \| Minimum
Fair value measurements
Measurement input	11.5		11.5
Discount rate \| Maximum
Fair value measurements
Measurement input	12.2		12.2
Time until the conditions of the milestone payments are met
Fair value measurements
Measurement input \| Y	3		3
Fair value
Fair value measurements
Asset transfer out of level 3			$ 0
Asset transfer into level 3			0
Liabilities transfers out of level 3			0
Liabilities transfers into level 3			$ 0