Product Warranty Obligations

3 Months Ended

Mar. 31, 2013

Product Warranty Obligations [Abstract]

6. Product Warranty Obligations

The Company records a liability for product warranty obligations at the time of sale to a customer based upon historical warranty experience. The Company also records a liability for specific warranty matters when they become known and are reasonably estimable. The Company's product warranty obligations are included in other accrued liabilities and other long-term liabilities in the condensed consolidated balance sheets. The Company recognizes the revenue from sales of extended warranties over the life of the contracts.

Changes in product warranty obligations are as follows:

	For the three months ended March 31,
	2013			2012
Balance at beginning of period	$	49,585		$	34,380
Payments, net of extended warranty receipts		(3,556	)		(4,452	)
Charged to operations		9,220			9,151
Balance at end of period	$	55,249		$	39,079

The product warranty obligations are included in the condensed consolidated balance sheets as follows:

	March 31,		December 31,
	2013		2012
Other accrued liabilities	$	33,242	$	28,752
Other long-term liabilities		22,007		20,833
Balance at end of period	$	55,249	$	49,585