Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Unrecognized tax benefits that would affect the effective tax rate	$ 12,900,000	$ 13,600,000	$ 11,500,000
Balance at beginning of period	14,493,000	12,478,000	11,064,000
Increases related to prior year tax positions	355,000	1,903,000	4,374,000
Decreases related to prior year tax positions	(1,447,000)	(162,000)	(5,423,000)
Increases related to current year tax positions	883,000	906,000	4,991,000
Expiration of statute of limitations	(429,000)	(632,000)	(1,064,000)
Balance at end of period	$ 13,855,000	$ 14,493,000	$ 12,478,000