Income Taxes - Components of Net Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets
Deferred tax assets	$ 2,748,831	$ 2,121,365
Less: valuation allowance	(2,512,571)	(1,985,843)
Net deferred tax assets	236,260	135,522
Deferred tax liabilities
Deferred tax liabilities	(29,437)	(46,094)
Net deferred tax assets (liabilities)	206,823	89,428
United States
Deferred tax assets
Net operating loss carry forwards	2,338	4,256
Excess of net tax basis over remaining book basis	18,527	18,382
Deferred pension plan amounts	356	1,945
Accrued expenses not currently deductible	6,613	5,017
Other	0	135
Deferred tax liabilities
Favorable contract value	0	(4,954)
Deferred revenue	(11,423)	(6,777)
Other	(1,809)	(718)
Non-United States
Deferred tax assets
Net operating loss carry forwards	1,407,964	1,076,364
Excess of net tax basis over remaining book basis	305,840	61,530
Other	1,669	17
Transition attribute	956,187	871,773
Tax credits carryover	15,274	23,820
Disallowed interest deduction carryforwards	30,982	30,225
Unfavorable contract value	3,081	27,901
Deferred tax liabilities
Favorable contract value	(1,573)	(1,288)
Excess of net book basis over remaining tax basis	(10,137)	(27,166)
Other	$ (4,495)	$ (5,191)