Nature of Operations and Summary of Significant Accounting Policies - Marketable Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Total cash and cash equivalents	$ 258,421	$ 215,723
Amortized Cost	601,989	610,185
Fair market value	601,989	610,185
Total Assets Measured at Fair Value - Amortized cost	860,410	825,908
Total cash and cash equivalents and available for sale securities, fair market value	$ 860,410	825,908
Marketable Securities
Maximum period for redemption	1 year
Corporate Bond Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 54,673	117,928
Fair market value	54,673	117,928
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	547,316	492,257
Fair market value	$ 547,316	$ 492,257