Fair Value (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value [Abstract]
Interest rate swap notional amount	$ 166,000		$ 166,000		$ 172,500
Fixed interest rate	1.4935%		1.4935%
Fair value of interest rate swap	$ 3,500		$ 3,500		$ 0
Unrealized loss on interest rate swap			(3,500)
Unrealized loss on interest rate swap, net of tax	$ 765	$ 0	$ (2,134)	$ 0