Goodwill and Other Intangible Assets (Intangible Assets) (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Amortization of Intangible Assets
Amortization of intangible assets	$ 6,620	$ 4,512	$ 19,160	$ 13,897
Estimated amortization of intangible assets, remainder of 2016	7,000		7,000
Estimated amortization of intangible assets, 2017	24,000		24,000
Estimated amortization of intangible assets, 2018	22,000		22,000
Estimated amortization of intangible assets, 2019	19,000		19,000
Estimated amortization of intangible assets, 2020	18,000		18,000
Estimated amortization of intangible assets, after 2020	$ 25,000		$ 25,000