Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits
Balance at beginning of year	$ 50,064	$ 60,302	$ 71,458
Increases from prior period positions	3,016	2,147	510
Decreases from prior period positions	(4,247)	(47)	(9,711)
Increases from current period positions	492	3,472	5,052
Decreases relating to settlements with tax authorities	(1,270)	(12,508)	(2,626)
Reductions from lapse of applicable statute of limitations	(2,983)	(3,302)	(4,381)
Balance at end of year	$ 45,072	$ 50,064	$ 60,302