Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2018	Aug. 31, 2017
OPERATING ACTIVITIES
Net income	$ 198,047	$ 34,765
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	79,625	82,583
Stock-based compensation	2,443	2,508
Amortization of financing costs	996	1,263
Deferred income taxes	(132,800)	(1,511)
Income from equity investments	(16,449)	(14,071)
Distribution from equity investee	17,323	14,936
Loss on retirements of long-lived assets, non-cash	3,538	531
Other, net	(339)	(211)
Changes in operating assets and liabilities:
Receivables, net	(13,096)	(9,789)
Prepaid expenses and other assets	(13,516)	(12,484)
Accounts payable and other liabilities	(2,697)	(8,792)
Deferred income	33,572	47,463
Income taxes	12,811	(2,846)
Net cash provided by operating activities	169,458	134,345
INVESTING ACTIVITIES
Capital expenditures	(122,180)	(77,559)
Distribution from equity investee	2,679	4,164
Equity investments and advances to affiliate	0	(147)
Proceeds from sale of assets	430	344
Other, net	0	(13)
Net cash used in investing activities	(119,071)	(73,211)
FINANCING ACTIVITIES
Payment of long-term debt	(715)	(672)
Deferred financing fees		(244)
Exercise of Class A common stock options	992	528
Cash dividend paid	(20,738)	(19,241)
Reacquisition of previously issued common stock	(8,230)	(36,350)
Net cash used in financing activities	(28,691)	(55,979)
Net increase in cash and cash equivalents	21,696	5,155
Cash and cash equivalents at beginning of period	256,702	263,727
Cash and cash equivalents at end of period	$ 278,398	$ 268,882