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Intangible and Other Non-Current Assets (Details) - USD ($)
 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]          
Other Assets, Noncurrent $ 0   $ 0   $ 210,000
Deferred Costs and Other Assets 14,476,000   14,476,000   10,978,000
Impairment of intangible assets     145,000 $ 0  
Noncompete Agreements [Member]          
Finite-Lived Intangible Assets [Line Items]          
Increase to tradenames     800,000    
Tradenames [Member]          
Finite-Lived Intangible Assets [Line Items]          
Other Assets, Noncurrent 11,940,000   11,940,000   8,856,000
Impairment of intangible assets 145,000        
Increase to tradenames     3,200,000    
Noncompete Agreements [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-Lived Intangible Assets, Net 2,536,000   2,536,000   1,912,000
Finite-Lived Intangible Assets, Accumulated Amortization 5,713,000   5,713,000   $ 5,404,000
Amortization of Intangible Assets $ 100,000 $ 100,000 $ 300,000 $ 200,000  
Noncompete Agreements [Member] | Minimum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-lived intangible assets, useful life     1 year    
Noncompete Agreements [Member] | Maximum [Member]          
Finite-Lived Intangible Assets [Line Items]          
Finite-lived intangible assets, useful life     10 years