Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 102,133	$ 101,158
Accumulated Amortization	36,209	30,442
Total intangible Assets, Gross Carrying Amount	106,522	105,461
Net Carrying Amount	65,924	70,716
Indefinite lived intangible assets	4,389	4,303
Total intangible assets, Net Carrying Amount	70,313	75,019
Trademarks and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,557	2,543
Accumulated Amortization	910	718
Net Carrying Amount	1,647	1,825
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48,300	47,724
Accumulated Amortization	22,544	19,681
Net Carrying Amount	25,756	28,043
Covenant-not-to-compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	962	943
Accumulated Amortization	962	943
Net Carrying Amount	0	0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	50,314	49,948
Accumulated Amortization	11,793	9,100
Net Carrying Amount	$ 38,521	$ 40,848