Annual report pursuant to Section 13 and 15(d)

Acquisitions, Goodwill and Other Long-Lived Assets Estimated Amortization Expense (Details)

v3.6.0.2
Acquisitions, Goodwill and Other Long-Lived Assets Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Intangible Assets [Line Items]    
Finite-lived Intangible Assets Acquired $ 184,485  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]    
Year 2017 9,439  
Year 2018 7,755  
Year 2019 7,468  
Year 2020 7,438  
Year 2021 7,282  
Finite-Lived Intangible Assets, Accumulated Amortization 61,334 $ 51,212
Impairment of Intangible Assets, Finite-lived 16,501  
Intangible Assets, Net (Excluding Goodwill) 106,650 $ 127,800
Customer Relationships [Member]    
Intangible Assets [Line Items]    
Finite-lived Intangible Assets Acquired 179,575  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]    
Year 2017 8,995  
Year 2018 7,490  
Year 2019 7,410  
Year 2020 7,410  
Year 2021 $ 7,267  
Finite-Lived Intangible Asset, Useful Life 16 years 11 days  
Finite-Lived Intangible Assets, Accumulated Amortization $ 57,390  
Impairment of Intangible Assets, Finite-lived 16,501  
Intangible Assets, Net (Excluding Goodwill) 105,684  
Noncompete Agreements [Member]    
Intangible Assets [Line Items]    
Finite-lived Intangible Assets Acquired 3,410  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]    
Year 2017 244  
Year 2018 232  
Year 2019 58  
Year 2020 28  
Year 2021 $ 15  
Finite-Lived Intangible Asset, Useful Life 5 years 3 months 11 days  
Finite-Lived Intangible Assets, Accumulated Amortization $ 2,677  
Intangible Assets, Net (Excluding Goodwill) 733  
Trade Names [Member]    
Intangible Assets [Line Items]    
Finite-lived Intangible Assets Acquired 1,500  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]    
Year 2017 200  
Year 2018 33  
Year 2019 0  
Year 2020 0  
Year 2021 $ 0  
Finite-Lived Intangible Asset, Useful Life 4 years 11 days  
Finite-Lived Intangible Assets, Accumulated Amortization $ 1,267  
Intangible Assets, Net (Excluding Goodwill) $ 233