Warranty Accrual (Tables)

12 Months Ended

Dec. 31, 2012

Warranty Accrual and Payment Activity

The following table summarizes the warranty reserve activity for the years ended December 31, 2012, 2011 and 2010.

	Year Ended December 31,
	2012			2011			2010
	(Dollars in thousands)
Balance at beginning of period	$	25,525		$	34,704		$	59,022
Expense provisions		4,216			4,224			5,320
Cash payments		(6,590	)		(7,925	)		(8,793	)
Adjustments		-			(5,478	)		(20,845	)
Balance at end of period	$	23,151		$	25,525		$	34,704