Income Taxes (Schedule of Unrecognized Tax Benefits Roll Forward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 12,629	$ 14,466
Settlements		(1,180)
Lapse of statute of limitations	(1,014)	(657)
Increase for prior year positions	275
Balance at end of period	$ 11,890	$ 12,629