XML 25 R15.htm IDEA: XBRL DOCUMENT v3.8.0.1
Product Warranty Liabilities
 3 Months Ended
Mar. 31, 2018
Guarantees [Abstract]  
Product Warranty Liabilities
Product Warranty Liabilities
The Company provides for the estimated cost of product warranties at the time revenue is recognized based primarily on historical return rates, estimates of the eligible tire population and the value of tires to be replaced. The following table summarizes the activity in the Company’s product warranty liabilities:
 
2018
 
2017
Reserve at beginning of year
$
12,093

 
$
10,634

Additions
3,844

 
2,324

Payments
(2,743
)
 
(2,030
)
Reserve at March 31
$
13,194

 
$
10,928