Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets- Intangible Assets (Details)

v3.5.0.2
Goodwill and Intangible Assets- Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount $ 26,077   $ 26,077   $ 26,959
Accumulated Amortization 21,462   21,462   20,189
Intangible assets, net 4,615   4,615   6,770
Amortization of intangible assets     1,793 $ 3,041  
Customer contracts          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 7,690   7,690   7,898
Accumulated Amortization 7,614   7,614   7,683
Amortization of intangible assets 46 $ 230 140 689  
Customer relationships          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 11,876   11,876   12,496
Accumulated Amortization 7,731   7,731   6,621
Non-compete agreements          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 3,240   3,240   3,324
Accumulated Amortization 3,169   3,169   3,149
Technology          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 2,728   2,728   2,701
Accumulated Amortization 2,435   2,435   2,241
Trade names          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 543   543   540
Accumulated Amortization 513   513   $ 495
Customer Relationships, Noncompete Agreements, Technology and Trade Names          
Finite-Lived Intangible Assets [Line Items]          
Amortization of intangible assets $ 536 $ 787 $ 1,653 $ 2,352  
Minimum          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life     4 years    
Minimum | Customer contracts          
Finite-Lived Intangible Assets [Line Items]          
Acquired intangible assets useful life     1 year    
Maximum          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life     15 years    
Maximum | Customer contracts          
Finite-Lived Intangible Assets [Line Items]          
Acquired intangible assets useful life     5 years