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Warranty Liability (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Warranty liability      
Period of warranty history used in estimating warranty costs 5 years    
Other long-term liabilities $ 8,207   $ 6,004
Accrued expenses and other current liabilities 16,909   $ 25,549
Company's warranty liability:      
Balance at the beginning of the period 7,423 $ 6,279  
Warranty provision 471 648  
Claims paid/settlements (1,390) (1,739)  
Balance at the end of the period 5,504 $ 5,188  
Standard Product Warranty Accrual, Ending Balance 6,504    
Warranty Reserves [Member]      
Warranty liability      
Other long-term liabilities 1,000    
Accrued expenses and other current liabilities $ 5,504    
Snow and ice control equipment      
Warranty liability      
Warranty period 2 years    
Parts and accessories      
Warranty liability      
Warranty period 1 year    
Certain snowplows      
Warranty liability      
Warranty period 1 year