Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Depreciation is calculated using the straight-line method over the estimated depreciable lives of the respective assets as follows:

	Depreciable Lives
Energy Servers	15-21 years
Computers, software and hardware	3-5 years
Machinery and equipment	5-10 years
Furniture and fixtures	3-5 years
Leasehold improvements	1-10 years
Buildings	*

* Lesser of 35 years or the term of the underlying land lease.

Property, plant and equipment, net, consists of the following (in thousands):

	December 31,
	2020		2019
Energy Servers	$	669,422	$	650,600
Computers, software and hardware	20,432		20,275
Machinery and equipment	106,644		101,650
Furniture and fixtures	8,455		8,339
Leasehold improvements	37,497		35,694
Building	46,730		40,512
Construction in progress	21,118		12,611
	910,298		869,681
Less: accumulated depreciation	(309,670)		(262,622)
	$	600,628	$	607,059

Schedule of Error Corrections and Prior Period Adjustments

The cumulative effect of applying ASC 842 on our consolidated balance sheets as of January 1, 2020 was as follows (in thousands):

	December 31, 2019 (1)		Adjustments Due to the Adoption of ASC 842			January 1, 2020
Assets:
Operating lease right-of-use assets	$	—	$	28,121		$	28,121
Total assets	1,322,591		28,121			1,350,712
Liabilities, Redeemable Noncontrolling Interest, Stockholders’ Deficit and Noncontrolling Interest:
Operating lease liabilities - current	—		5,535			5,535
Accrued expenses and other current liabilities	70,284		(1,314)		(2)	68,970
Total current liabilities	573,964		4,221			578,185
Operating lease liabilities, non-current	—		34,240			34,240
Other long-term liabilities	28,013		(10,340)		(2)	17,673
Total liabilities	1,490,451		28,121			1,518,572
Total liabilities, redeemable noncontrolling interest, stockholders' deficit and noncontrolling interest	1,322,591		28,121			1,350,712

(1) As reported in our 2019 Annual Report on Form 10-K.

(2) Adjustment relates to deferred rent balances as of December 31, 2019.