Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Amortization (Details)

v3.6.0.2
Goodwill and Intangible Assets - Amortization (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 2,358 $ 4,150 $ 4,738
Customer contracts      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 184 932 1,673
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 1,809 2,139 1,688
Non-compete agreements      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 116 494 805
Technology      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 238 528 490
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 11 $ 57 $ 82