Income Taxes (Tables)

3 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Components of Deferred Tax Assets and Liabilities

The components of our net deferred tax asset were as follows:

	March 31,			December 31,
	2013			2012
Deferred tax assets:	(Dollars in thousands)
Federal net operating loss carryforwards	$	123,310		$	129,695
State net operating loss carryforwards		48,902			49,551
Alternative minimum tax and other tax credit carryforwards		11,353			10,988
Stock-based compensation expense		28,978			29,196
Warranty, litigation and other reserves		14,610			14,556
Deferred compensation retirement plans		11,682			11,252
Asset impairment charges		11,441			14,080
Inventory, additional costs capitalized for tax purposes		4,022			3,930
Other, net		1,627			2,063
Total deferred tax assets		255,925			265,311
Valuation allowance		(238,795	)		(248,306	)
Total deferred tax assets, net of valuation allowance		17,130			17,005
Deferred tax liabilities:
Property, equipment and other assets		5,714			5,753
Discount on notes receivable		4,204			4,204
Deferred revenue		2,974			3,796
Unrealized gain on marketable securities		2,853			1,863
Other, net		1,385			1,389
Total deferred tax liabilities		17,130			17,005
Net deferred tax asset	$	-		$	-