Stock-Based Compensation Restricted Stock Units Summary (Details) - Restricted Stock Units (RSUs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
[Line Items]
Outstanding, beginning balance (in shares)		430	544
Outstanding, beginning balance, weighted average grant date fair value (in dollars per share)		$ 85.77
Granted (in shares)		332	186
Granted, weighted average grant date fair value (in dollars per share)		$ 53.95	$ 100.28
Forfeited (in shares)		(25)	(10)
Forfeited, weighted average grant date fair value (in dollars per share)		$ 73.94
Outstanding, ending balance (in shares)		588	543
Outstanding, ending balance, weighted average grant date fair value (in dollars per share)		$ 68.12
Vested and Released [Member]
[Line Items]
Released (in shares)	[1]	(149)	(177)
Released, weighted average grant date fair value (in dollars per share)		$ 86.83
Released, aggregate intrinsic value		$ 8,025	$ 18,007
Vested but Not Released [Member]
[Line Items]
Released (in shares)		(11)
Released, aggregate intrinsic value		$ 563
Long Term Performance Restricted Stock Award [Member]
[Line Items]
Granted, weighted average grant date fair value (in dollars per share)		$ 57.88	$ 113.75

[1] (1)     Shares released is presented as gross shares and does not reflect shares withheld by us for employee payroll tax obligations.