Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets- Intangible Assets (Details)

v2.4.0.8
Goodwill and Intangible Assets- Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount $ 23,659   $ 23,659   $ 22,056
Accumulated Amortization 13,807   13,807   11,803
Intangible assets, net 9,852   9,852   10,253
Amortization of intangible assets     1,878 1,789  
Customer contracts
          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 7,724   7,724   7,684
Accumulated Amortization 5,983   5,983   5,349
Amortization of intangible assets 363 227 614 454  
Customer relationships
          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 9,239   9,239   8,200
Accumulated Amortization 3,565   3,565   2,923
Non-compete agreements
          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 3,296   3,296   3,230
Accumulated Amortization 2,336   2,336   1,872
Technology
          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 2,844   2,844   2,386
Accumulated Amortization 1,523   1,523   1,299
Trade names
          
Finite-Lived Intangible Assets [Line Items]          
Gross Carrying Amount 556   556   556
Accumulated Amortization 400   400   360
Customer Relationships, Noncompete Agreements, Technology and Trade Names
          
Finite-Lived Intangible Assets [Line Items]          
Acquired intangible assets useful life     10 years 7 months 6 days    
Amortization of intangible assets $ 697 $ 671 $ 1,264 $ 1,335  
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