Product Warranty Obligations (Tables)

3 Months Ended

Mar. 31, 2014

The following is a tabular reconciliation of the product warranty liability, excluding the deferred revenue related to extended warranty coverage:

	For the three months ended March 31,
	2014			2013
Balance at beginning of period	$	33,734		$	36,112
Payments		(6,723	)		(5,694	)
Provision for warranties issued		6,039			10,989
Changes in estimates for pre-existing warranties		(1,143	)		(1,200	)
Balance at end of period	$	31,907		$	40,207

The following is a tabular reconciliation of the deferred revenue related to extended warranty coverage:

	For the three months ended March 31,
	2014			2013
Balance at beginning of period	$	23,092		$	13,473
Deferred revenue on extended warranty contracts sold		2,219			2,138
Amortization of deferred revenue on extended warranty contracts		(679	)		(569	)
Balance at end of period	$	24,632		$	15,042

Product warranty obligations and warranty related deferred revenues are included in the balance sheets as follows:

	March 31,		December 31,
	2014		2013
Product warranty liability
Current portion - other accrued liabilities	$	24,253	$	26,080
Long-term portion - other long-term liabilities		7,654		7,654
Total	$	31,907	$	33,734

Deferred revenue related to extended warranty
Current portion - other accrued liabilities	$	4,865	$	3,325
Long-term portion - other long-term liabilities		19,767		19,767
Total	$	24,632	$	23,092