Warranty Reserves (Tables)

9 Months Ended

Sep. 30, 2011

Warranty Reserves [Abstract]

Warranty Reserve Activity

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Balance at beginning of period	$	31,200		$	51,986		$	34,704		$	59,022
Expense provisions		1,265			1,403			3,140			4,613
Cash payments		(2,707	)		(2,944	)		(5,823	)		(7,584	)
Adjustments		(955	)		(7,197	)		(3,218	)		(12,803	)
Balance at end of period	$	28,803		$	43,248		$	28,803		$	43,248