Goodwill and Other Intangible Assets (Estimated Annual Amortization Expense) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization charge of intangible assets	$ 3,800	$ 2,900
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Remainder of 2016	3,517
2017	6,242
2018	5,895
2019	5,080
2020 and thereafter	13,673
Net Carrying Amount	$ 34,407		$ 31,526