Quarterly report pursuant to Section 13 or 15(d)

Warranty Liability (Details)

v2.4.0.8
Warranty Liability (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Warranty liability    
Period of warranty history used in estimating warranty costs 5 years  
Company's warranty liability:    
Balance at the beginning of the period $ 3,808 $ 3,628
Warranty provision 459 125
Claims paid/settlements (1,337) (894)
Balance at the end of the period $ 2,930 $ 2,859
Snow and Ice Control Equipment [Member]
    
Warranty liability    
Warranty period 2 years  
Parts and Accessories [Member]
    
Warranty liability    
Warranty period 1 year  
Certain Snowplows [Member]
    
Warranty liability    
Warranty period 1 year