Leases (Future Min Schedule) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	$ 3,021
2017	2,776
2018	2,502
2019	2,068
2020	1,866
Thereafter	12,991
Total minimum rentals	25,224
Less amounts representing interest at rates ranging from 1.7% to 13.4%	6,611
Capital lease obligations	18,613	$ 15,206
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	55,636
2017	55,857
2018	53,515
2019	52,034
2020	50,378
Thereafter	331,746
Total minimum rentals	$ 599,166