Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Contingency [Line Items]
Investment tax credit	$ 75,500	$ 66,000
Other state tax credit carryforward	1,900
Deferred tax asset, valuation allowance	136,682	91,322
Valuation allowance, deferred tax asset, increase (decrease)	45,400
Unrecognized tax benefits	961	961	$ 0	$ 647
U.S. Federal
Income Tax Contingency [Line Items]
Capital loss carryforward	7,200
Net operating loss carryforwards	720,700
U.S. Federal | Indefinite
Income Tax Contingency [Line Items]
Net operating loss carryforwards	1,400,000
State
Income Tax Contingency [Line Items]
Capital loss carryforward	8,900
Net operating loss carryforwards	2,300,000
State | Indefinite
Income Tax Contingency [Line Items]
Net operating loss carryforwards	198,700
Vivint Solar
Income Tax Contingency [Line Items]
Unrecognized tax benefits	1,000	1,000
California Enterprise Zone Credits.
Income Tax Contingency [Line Items]
Investment tax credit	$ 1,000	$ 1,000