Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of the federal income tax statutory rate to the Company's effective income tax rate
Federal income tax statutory rate (as a percent)									35.00%	35.00%	35.00%
State income taxes, net of federal tax (as a percent)									3.50%	3.20%	3.20%
Deferred tax valuation allowance (as a percent)									(39.30%)	(37.80%)	(38.50%)
Compensation expense (as a percent)									2.70%	(1.60%)	(0.90%)
Settlement of uncertain tax positions (as a percent)									0.00%	4.60%	0.00%
Other (as a percent)									1.90%	1.90%	1.00%
Effective income tax rate (as a percent)									3.80%	5.30%	(0.20%)
CURRENT TAX EXPENSE (BENEFIT)
Federal									$ 568	$ (227)	$ (244)
State									1,017	(2,638)	439
Total current tax expense (benefit)									1,585	(2,865)	195
DEFERRED TAX EXPENSE
Federal									0	0	0
State									0	0	0
Total deferred expense									0	0	0
Total income tax (benefit) expense	1,372	23	190	0	(449)	(18)	0	(2,398)	1,585	(2,865)	195
DEFERRED TAX ASSETS
Warranty, legal and other accruals	17,482				17,206				17,482	17,206
Employee benefits	19,285				17,131				19,285	17,131
Noncash tax charge for impairment of long-lived assets	88,042				115,226				88,042	115,226
Joint ventures	4,188				3,604				4,188	3,604
Federal net operating loss carryforwards	120,068				107,529				120,068	107,529
Other carryforwards	1,057				1,352				1,057	1,352
State net operating loss carryforwards	37,893				36,831				37,893	36,831
Other	912				1,313				912	1,313
Total	288,927				300,192				288,927	300,192
Valuation allowance	(258,867)				(270,451)				(258,867)	(270,451)
Total deferred tax assets	30,060				29,741				30,060	29,741
DEFERRED TAX LIABILITIES
Deferred recognition of income and gains	(2,277)				(3,385)				(2,277)	(3,385)
Capitalized expenses	(25,748)				(24,842)				(25,748)	(24,842)
Other	(2,035)				(1,514)				(2,035)	(1,514)
Total deferred tax liabilities	(30,060)				(29,741)				(30,060)	(29,741)
NET DEFERRED TAX ASSET	$ 0				$ 0				$ 0	$ 0