Annual report pursuant to Section 13 and 15(d)

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

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Goodwill and Long-Lived Assets Estimated Amortization Expense (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Customer Relationships [Member]
Dec. 31, 2013
Noncompete Agreements [Member]
Dec. 31, 2012
Noncompete Agreements [Member]
Dec. 31, 2013
Trade Names [Member]
Dec. 31, 2011
Trade Names [Member]
Intangible Assets [Line Items]              
Finite-Lived Customer Relationships, Gross $ 68,650            
Finite-Lived Noncompete Agreements, Gross 2,250            
Finite-Lived Trade Names, Gross 1,000            
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]              
Year 2014 5,868   5,554 114   200  
Year 2015 5,061   4,747 114   200  
Year 2016 4,530   4,216 114   200  
Year 2017 4,407   4,101 106   200  
Year 2018 2,645   2,596 16   33  
Finite-Lived Intangible Asset, Useful Life     12 years 7 months 11 days 5 years 4 months 11 days   5 years 0 months 11 days  
Finite-Lived Intangible Assets, Accumulated Amortization $ 31,790 $ 26,028 $ 5,762   $ 4,566   $ 4,591