Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Contract with Customer, Asset and Liability

Deferred revenue and customer deposits as of March 31, 2021 and December 31, 2020 consists of the following (in thousands):

	March 31,		December 31,
	2021		2020
Deferred revenue	$	120,643	$	135,578
Customer deposits	33,069		66,171
Deferred revenue and customer deposits	$	153,712	$	201,749

Deferred revenue activity, including deferred incentive revenue activity, during the three months ended March 31, 2021 and 2020 consists of the following (in thousands):

	Three Months Ended March 31,
	2021		2020
Beginning balance	$	135,578	$	175,455
Additions	156,586		138,387
Revenue recognized	(171,521)		(136,576)
Ending balance	$	120,643	$	177,266

Disaggregation of Revenue

We disaggregate revenue from contracts with customers into four revenue categories: (i) product, (ii) installation, (iii) services and (iv) electricity (in thousands):

	Three Months Ended March 31,
	2021		2020
Revenue from contracts with customers:
Product revenue	$	137,930	$	99,559
Installation revenue	2,659		16,618
Services revenue	36,417		25,147
Electricity revenue	595		72
Total revenue from contract with customers	177,601		141,396
Revenue from contracts accounted for as leases:
Electricity revenue	16,406		15,303
Total revenue	$	194,007	$	156,699