Commitment and Contingencies - Narrative (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 34,258,000	$ 20,667,000	$ 18,250,000	$ 17,788,000	$ 15,820,000	$ 17,610,000
Array | TRA
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 18,324,000	18,845,000	17,808,000	17,346,000	15,378,000	17,168,000
Tax Receivable Agreement, payment term	125 days
Array | Earn-Out Liability
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 15,934,000	$ 1,822,000	$ 442,000	$ 442,000	$ 442,000	$ 442,000
Maximum aggregate earn-out consideration	$ 25,000,000.0