Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
Provision at statutory rate	$ 84,000	$ 703,000	$ 347,000
Foreign income taxed at different rates	19,000	19,000	13,000
Other taxes on foreign operations	89,000	19,000	(19,000)
Stock-based compensation	(26,000)	(4,000)	(4,000)
State taxes, net of federal benefit	3,000	80,000	(24,000)
Research and other tax credits	(39,000)	(28,000)	(29,000)
Impact of tax rate change	(3,000)	43,000	(21,000)
Effective settlement of audits	0	0	(69,000)
Non-deductible executive compensation	10,000	9,000	10,000
Other	9,000	17,000	15,000
Income tax expense (benefit)	$ 146,000	$ 858,000	$ 219,000