Commitment and Contingencies - Narrative (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 12,952,000	$ 12,016,000	$ 19,691,000	$ 34,258,000	$ 20,667,000	$ 18,250,000
Array | TRA
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 12,952,000	12,016,000	19,691,000	18,324,000	18,845,000	17,808,000
Tax Receivable Agreement, payment term	125 days
Array | Earn-Out Liability
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 0	$ 0	0	$ 15,934,000	$ 1,822,000	$ 442,000
Maximum aggregate earn-out consideration			$ 25,000,000