Quarterly report pursuant to Section 13 or 15(d)

Warranty Liability (Details)

v2.4.1.9
Warranty Liability (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Warranty liability    
Period of warranty history used in estimating warranty costs 5 years  
Company's warranty liability:    
Balance at the beginning of the period $ 6,279us-gaap_StandardProductWarrantyAccrualCurrent $ 3,808us-gaap_StandardProductWarrantyAccrualCurrent
Warranty provision 648us-gaap_StandardProductWarrantyAccrualWarrantiesIssued 459us-gaap_StandardProductWarrantyAccrualWarrantiesIssued
Claims paid/settlements (1,739)us-gaap_StandardProductWarrantyAccrualPayments (1,337)us-gaap_StandardProductWarrantyAccrualPayments
Balance at the end of the period $ 5,188us-gaap_StandardProductWarrantyAccrualCurrent $ 2,930us-gaap_StandardProductWarrantyAccrualCurrent
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