Quarterly report pursuant to Section 13 or 15(d)

Warranty Liability (Details)

v2.4.0.6
Warranty Liability (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Warranty liability    
Period of warranty history used in estimating warranty costs 5 years  
Company's warranty liability:    
Balance at the beginning of the period $ 3,628 $ 4,188
Warranty provision 125 130
Claims paid/settlements (894) (812)
Balance at the end of the period $ 2,859 $ 3,506
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