Goodwill and Other Intangible Assets (Intangible Assets) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Amortization of Intangible Assets
Amortization of intangible assets	$ 6,278	$ 4,647	$ 12,540	$ 9,385
Estimated amortization of intangible assets, remainder of 2016	12,000		12,000
Estimated amortization of intangible assets, 2017	21,000		21,000
Estimated amortization of intangible assets, 2018	19,000		19,000
Estimated amortization of intangible assets, 2019	17,000		17,000
Estimated amortization of intangible assets, 2020	15,000		15,000
Estimated amortization of intangible assets, after 2020	$ 17,000		$ 17,000