Goodwill and Intangible Assets Intangibles (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 122,940	$ 124,132
Accumulated Amortization	72,616	67,577
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	115,193	116,268
Accumulated Amortization	69,628	64,922
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,747	7,864
Accumulated Amortization	$ 2,988	$ 2,655