Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
OPERATING ACTIVITIES
Net income	$ 28,087	$ 29,842
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	66,662	57,992
Stock-based compensation	1,887	1,346
Amortization of financing costs	1,056	1,221
Deferred income taxes	16,684	8,043
Loss (income) from equity investments	(7,145)	(1,962)
Distribution from equity investee	9,000	0
Loss on asset retirements, non-cash	6,738	5,480
Other, net	(93)	(820)
Changes in operating assets and liabilities:
Receivables, net	(3,388)	(495)
Inventories, prepaid expenses and other assets	(11,369)	(11,908)
Accounts payable and other liabilities	4,426	(4,273)
Deferred income	34,799	36,415
Income taxes	(14,519)	(7,306)
Net cash provided by operating activities	132,825	113,575
INVESTING ACTIVITIES
Capital expenditures	(46,880)	(48,648)
Distribution from equity investee and affiliate	4,500	0
Equity investments and advances to affiliate	0	(51,556)
Proceeds from sale of Staten Island property	5,322	0
Other, net	142	1,408
Net cash used in investing activities	(36,916)	(98,796)
FINANCING ACTIVITIES
Payment under credit facility	0	(60,000)
Proceeds from credit facility	0	130,000
Payment of long-term debt	(505)	(87,517)
Deferred financing fees		(73)
Exercise of Class A common stock options	78	0
Cash dividend paid	(10,229)	(9,283)
Reacquisition of previously issued common stock	(259)	(10,556)
Net cash used in financing activities	(10,915)	(37,429)
Net (decrease) increase in cash and cash equivalents	84,994	(22,650)
Cash and cash equivalents at beginning of period	78,379	110,078
Cash and cash equivalents at end of period	$ 163,373	$ 87,428