Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Aug. 31, 2012	Aug. 31, 2011
OPERATING ACTIVITIES
Net income	$ 29,842	$ 42,958
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	57,992	57,165
Stock-based compensation	1,346	1,066
Amortization of financing costs	1,221	1,030
Deferred income taxes	8,043	20,063
Loss (income) from equity investments	(1,962)	2,816
Impairment of long-lived assets, non-cash	5,480	3,119
Other, net	(820)	428
Changes in operating assets and liabilities:
Receivables, net	(495)	(11,690)
Inventories, prepaid expenses and other assets	(11,908)	(12,992)
Accounts payable and other liabilities	(4,273)	7,926
Deferred income	36,415	34,128
Income taxes	(7,306)	6,582
Net cash provided by operating activities	113,575	152,599
INVESTING ACTIVITIES
Capital expenditures	(48,648)	(55,134)
Equity investments and advances to affiliate	(51,556)	(37,871)
Decrease in restricted cash	0	1,002
Other, net	1,408	(48)
Net cash used in investing activities	(98,796)	(92,051)
FINANCING ACTIVITIES
Payment under credit facility	(60,000)	(82,000)
Proceeds from credit facility	130,000
Payment of long-term debt	(87,517)	(1,609)
Proceeds from long-term debt	0	65,000
Deferred financing fees	(73)	(439)
Exercise of Class A common stock options		51
Cash dividend paid	(9,283)	(8,585)
Reacquisition of previously issued common stock	(10,556)	(21,253)
Net cash used in financing activities	(37,429)	(48,835)
Net increase (decrease) in cash and cash equivalents	(22,650)	11,713
Cash and cash equivalents at beginning of period	110,078	84,166
Cash and cash equivalents at end of period	$ 87,428	$ 95,879