Commitment and Contingencies - Summary of liability related to estimated contingent consideration (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Combination, Contingent Consideration Arrangements, Change In Amount Of Contingent Consideration [Roll Forward]
Beginning balance	$ 20,667	$ 15,820	$ 18,250	$ 17,610
Fair value adjustment	13,591	1,968	16,008	178
IRS Settlement				(2,727)
Fair value adjustment				2,905
Ending balance	34,258	17,788	34,258	17,788
Array | TRA
Business Combination, Contingent Consideration Arrangements, Change In Amount Of Contingent Consideration [Roll Forward]
Beginning balance	18,845	15,378	17,808	17,168
Fair value adjustment	(521)	1,968	516
IRS Settlement				(2,727)
Fair value adjustment				2,905
Ending balance	18,324	17,346	18,324	17,346
Array | Earn-Out Liability
Business Combination, Contingent Consideration Arrangements, Change In Amount Of Contingent Consideration [Roll Forward]
Beginning balance	1,822	442	442	442
Fair value adjustment	14,112	0	15,492
IRS Settlement				0
Fair value adjustment				0
Ending balance	$ 15,934	$ 442	$ 15,934	$ 442