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Product Warranty (Tables)
 9 Months Ended
Sep. 30, 2014
Guarantees [Abstract]  
Reconciliation of Reserve for Warranty Expense
The following table provides a reconciliation of the activity related to the Company’s reserve for accrued warranty expense (in thousands):
 
Three Months Ended 
 September 30,
 
Nine Months Ended 
 September 30,
 
2014
 
2013
 
2014
 
2013
Beginning balance
$
7,396

 
$
8,241

 
$
6,406

 
$
7,539

Provision
(15
)
 
190

 
3,895

 
4,335

Claims paid/costs incurred
(1,499
)
 
(1,665
)
 
(4,419
)
 
(5,108
)
Ending balance
$
5,882

 
$
6,766

 
$
5,882

 
$
6,766