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Finite-Lived Intangibles Table (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, cost $ 23,811 $ 44,466
Finite-lived intangible assets, accumulated amortization (21,116) (40,326)
Finite-lived intangible assets, carrying value 2,695 4,140
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, cost 23,811 43,966
Finite-lived intangible assets, accumulated amortization (21,116) (39,891)
Finite-lived intangible assets, carrying value 2,695 4,075
Noncompete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, cost 0 500
Finite-lived intangible assets, accumulated amortization 0 (435)
Finite-lived intangible assets, carrying value 0 65
Intangible Assets Including Goodwill [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, accumulated amortization $ (21,116) $ (40,326)