Product Warranties

9 Months Ended

Oct. 01, 2011

Product Warranties [Abstract]

Product Warranties

7. Product warranties

The Company warrants certain qualitative attributes of its products for up to 50 years. The Company records a provision for estimated warranty and related costs in accrued expenses, based on historical experience, and periodically adjusts these provisions to reflect actual experience.

The provision for warranty obligations is as follows:

	Three Months Ended						Nine Months Ended
	October 1, 2011			October 2, 2010			October 1, 2011			October 2, 2010
Balance at beginning of period	$	32,052			44,501			37,265			66,545
Warranty claims paid during the period		(13,247	)		(14,999	)		(43,994	)		(58,124	)
Pre-existing warranty accrual adjustment during the period		300			—			3,784			—
Warranty expense during the period		10,140			9,198			32,190			30,279
Balance at end of period	$	29,245			38,700			29,245			38,700