Income Taxes Deferred Tax Assets and Liabilities (Details) (annual) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Net operating loss	$ 14,649	$ 18,039
Deferred compensation	34,342	24,068
Tax credits	3,241	6,230
Lease liability	24,373	20,401
Other	7,134	7,371
Total deferred tax assets	83,739	76,109
Valuation allowance	(4,226)	(5,194)
Deferred tax assets, net of valuation allowance	79,513	70,915
Right-of-use on certain assets	22,568	19,443
Unrealized gains on investments	30,393	33,439
Other	4,787	9,003
Total deferred tax liabilities	(57,748)	(61,885)
Deferred tax assets/(liabilities), net	$ 21,765	$ 9,030