Income Taxes - Significant Components of The Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets
Accruals and prepaids	$ 53,506	$ 51,704
Deferred revenue	52,017	17,736
Net operating loss carryforwards	605,416	529,394
Stock-based compensation	15,345	22,224
Investment tax and other credits	95,889	86,175
Interest expense	5,644	16,627
UNICAP costs	61,671	2,141
Interest rate derivatives	39,784	53,057
Total deferred tax assets	929,272	779,058
Less: Valuation allowance	(136,682)	(91,322)
Gross deferred tax assets	792,590	687,736
Deferred tax liabilities
Capitalized costs to obtain a contract	171,219	93,441
Fixed asset depreciation and amortization	435,493	333,970
Deferred tax on investment in partnerships	287,631	342,230
Gross deferred tax liabilities	894,343	769,641
Net deferred tax liabilities	$ (101,753)	$ (81,905)