Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets- Intangible Assets (Details)

v3.2.0.727
Goodwill and Intangible Assets- Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount $ 27,611   $ 27,611   $ 27,642
Accumulated Amortization 18,414   18,414   16,404
Intangible assets, net 9,197   9,197   11,238
Amortization of intangible assets     2,024 $ 1,878  
Customer contracts          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 8,080   8,080   8,103
Accumulated Amortization 7,365   7,365   6,911
Amortization of intangible assets 231 $ 363 459 614  
Customer relationships          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 12,837   12,837   12,792
Accumulated Amortization 5,653   5,653   4,562
Non-compete agreements          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 3,394   3,394   3,402
Accumulated Amortization 2,963   2,963   2,725
Technology          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 2,754   2,754   2,794
Accumulated Amortization 1,970   1,970   1,767
Trade names          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 546   546   551
Accumulated Amortization 463   463   $ 439
Customer Relationships, Noncompete Agreements, Technology and Trade Names          
Finite-Lived Intangible Assets [Line Items]          
Amortization of intangible assets $ 784 $ 697 $ 1,565 $ 1,264  
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