Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	May 31, 2019	May 31, 2018
OPERATING ACTIVITIES
Net income	$ 36,628	$ 186,016
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	58,068	53,598
Stock-based compensation	1,663	1,585
Amortization of financing costs	827	806
Deferred income taxes	(294)	(136,870)
Income from equity investments	(11,937)	(10,659)
Distribution from equity investee	12,650	11,138
Loss on retirements of long-lived assets, non-cash	1,021	2,601
Other, net	(29)	(233)
Changes in operating assets and liabilities:
Receivables, net	613	(15,331)
Prepaid expenses and other assets	(16,350)	(16,521)
Accounts payable and other liabilities	(2,772)	(7,364)
Deferred income	42,242	53,696
Income taxes	(424)	19,013
Net cash provided by operating activities	121,906	141,475
INVESTING ACTIVITIES
Capital expenditures	(42,562)	(65,019)
Distribution from equity investee	122	487
Proceeds from sale of assets	30	418
Acquisition of assets	7,969	0
Other, net	(279)	0
Net cash used in investing activities	(50,658)	(64,114)
FINANCING ACTIVITIES
Payment of long-term debt	(503)	(473)
Exercise of Class A common stock options		718
Reacquisition of previously issued common stock	(1,009)	(7,175)
Net cash used in financing activities	(1,512)	(6,930)
Net increase in cash and cash equivalents	69,736	70,431
Cash and cash equivalents at beginning of period	269,011	256,702
Cash and cash equivalents at end of period	$ 338,747	$ 327,133