Income Taxes (Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Accruals and reserves	$ 56,186	$ 59,515
Deferred revenue	24,280	34,596
Tax credits	155,861	146,470
Net operating losses	107,807	54,882
Stock based compensation	58,561	45,346
Swiss tax reform	331,082	261,090
Acquired technology	0	2,346
Interest expense limitation - 163(j)	39,752	0
Valuation allowance	(122,491)	(151,791)
Total deferred tax assets	651,038	452,454
Deferred tax liabilities:
Acquired technology	(161,170)	0
Depreciation and amortization	(24,595)	(23,445)
Prepaid expenses	(53,886)	(42,717)
Other	(1,149)	(2,973)
Total deferred tax liabilities	(240,800)	(69,135)
Total net deferred tax assets	$ 410,238	$ 383,319