Revenue Recognition - Revenue by Source (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Product revenue	$ 185,021	$ 177,601
Total revenue	201,039	194,007
Product
Disaggregation of Revenue [Line Items]
Product revenue	133,547	137,930
Total revenue	133,547	137,930
Installation
Disaggregation of Revenue [Line Items]
Product revenue	13,553	2,659
Total revenue	13,553	2,659
Service
Disaggregation of Revenue [Line Items]
Product revenue	35,239	36,417
Total revenue	35,239	36,417
Electricity
Disaggregation of Revenue [Line Items]
Product revenue	2,682	595
Electricity revenue	16,018	16,406
Total revenue	$ 18,700	$ 17,001