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Acquisition (Details) - Timco Services, Inc.
 3 Months Ended 9 Months Ended
Mar. 11, 2015
USD ($)
payment
Sep. 30, 2015
USD ($)
Sep. 30, 2015
USD ($)
Business Acquisition [Line Items]      
Cash payment to acquire business $ 81,000,000    
Tax reimbursement payment 8,000,000    
Contingent consideration, maximum $ 20,000,000    
Number of contingent payments | payment 2    
Amount of contingent payments $ 10,000,000    
Contingent consideration, liability   $ 7,000 $ 7,000
Goodwill 4,900,000    
Finite-lived Intangible Assets Acquired $ 7,900,000    
Amortization of Intangible Assets   $ 500,000 $ 900,000