Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Treasury Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Trust for Benefit of Employees [Member]
Balance at Nov. 30, 2010	$ 631,878	$ 115,149	$ (931,543)	$ 873,519	$ 717,852	$ (22,657)	$ (120,442)
Common Stock, Shares, Outstanding		115,171,000	(27,214,000)				(10,884,000)
Comprehensive loss:
Net income (loss)	(178,768)				(178,768)
Other Comprehensive Income (Loss), Net of Tax	(3,495)					(3,495)
Dividends on common stock	(19,240)				(19,240)
Employee stock options and other, Value	(2,432)	(22)		(2,410)
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	22,000
Forfeited restricted stock, Value	0		(794)	794
Forfeited restricted stock, Shares			(119,000)
Stock-based compensation	8,054			8,054
Grantor stock ownership trust, Value	1,796			(587)			2,383
Grantor stock ownership trust, Shares							199,000
Balance at Nov. 30, 2011	442,657	115,171	(932,337)	884,190	519,844	(26,152)	(118,059)
Common Stock, Shares, Outstanding		115,178,000	(27,340,000)				(10,616,000)
Comprehensive loss:
Net income (loss)	(58,953)				(58,953)
Other Comprehensive Income (Loss), Net of Tax	(1,806)					(1,806)
Dividends on common stock	(10,599)				(10,599)
Employee stock options and other, Value	(104)	(7)		(97)
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	7,494	7,000
Restricted stock awards, Value	0			(2,253)			2,253
Restricted stock awards, Shares							208,000
Stock-based compensation	6,713			6,713
Grantor stock ownership trust, Value	489			(168)			657
Grantor stock ownership trust, Shares							60,000
Treasury stock, Value	(1,799)		(1,799)
Treasury stock, Shares			(126,000)
Balance at Nov. 30, 2012	376,806	115,178	(934,136)	888,579	450,292	(27,958)	(115,149)
Common Stock, Shares, Outstanding		115,296,000	(21,050,000)				(10,502,000)
Comprehensive loss:
Net income (loss)	39,963				39,963
Other Comprehensive Income (Loss), Net of Tax	10,442					10,442
Dividends on common stock	(8,366)				(8,366)
Employee stock options and other, Value	(1,592)	(118)		(1,474)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures			478,000
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	8,346		7,934	412
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	118,208	118,000
Restricted stock awards, Value	0			(954)			954
Restricted stock awards, Shares							88,000
Stock-based compensation	5,699			5,699
Stock Issued During Period, Shares, Treasury Stock Reissued			6,325,000
Stock Issued During Period, Value, Treasury Stock Reissued	109,503		216,125	(106,622)
Grantor stock ownership trust, Value	589			305			284
Grantor stock ownership trust, Shares							26,000
Treasury stock, Value	(8,488)		(8,488)
Treasury stock, Shares			(513,000)
Balance at Nov. 30, 2013	$ 536,086	$ 115,296	$ (718,565)	$ 788,893	$ 481,889	$ (17,516)	$ (113,911)