Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
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)									3.20%	3.50%	3.20%
Deferred tax valuation allowance (as a percent)									(132.20%)	(39.30%)	(37.80%)
Compensation expense (as a percent)									0.10%	2.70%	(1.60%)
Settlement of uncertain tax positions (as a percent)									0.00%	0.00%	4.60%
Other (as a percent)									0.20%	1.90%	1.90%
Effective income tax rate (as a percent)									(93.70%)	3.80%	5.30%
CURRENT TAX EXPENSE (BENEFIT)
Federal									$ (75)	$ 568	$ (227)
State									471	1,017	(2,638)
Total current tax expense (benefit)									396	1,585	(2,865)
DEFERRED TAX BENEFIT
Federal									(139,207)	0	0
State									(44,597)	0	0
Total deferred tax benefit									(183,804)	0	0
Total income tax (benefit) expense	2,917	428	(186,952)	199	1,372	23	190	0	(183,408)	1,585	(2,865)
DEFERRED TAX ASSETS
Warranty, legal and other accruals	19,900				17,482				19,900	17,482
Employee benefits	19,054				19,285				19,054	19,285
Noncash tax charge for impairment of long-lived assets	59,608				88,042				59,608	88,042
Joint ventures	4,038				4,188				4,038	4,188
Federal NOL carryforwards	72,248				120,068				72,248	120,068
Other carryforwards	994				1,057				994	1,057
State NOL carryforwards	37,971				37,893				37,971	37,893
Other	1,131				912				1,131	912
Total	214,944				288,927				214,944	288,927
Valuation allowance	0		(46,400)		(258,867)				0	(258,867)
Total deferred tax assets	214,944				30,060				214,944	30,060
DEFERRED TAX LIABILITIES
Deferred recognition of income and gains	(1,196)				(2,277)				(1,196)	(2,277)
Capitalized expenses	(24,553)				(25,748)				(24,553)	(25,748)
Other	(3,291)				(2,035)				(3,291)	(2,035)
Total deferred tax liabilities	(29,040)				(30,060)				(29,040)	(30,060)
NET DEFERRED TAX ASSET	$ 185,904				$ 0				$ 185,904	$ 0