Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
OPERATING ACTIVITIES
Net income	$ 19,831	$ 14,953
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	25,046	24,009
Stock-based compensation	749	706
Amortization of financing costs	442	445
Interest received on Staten Island note receivable	1,162	1,162
Deferred income taxes	51,078	3,032
Income from equity investments	(3,970)	(3,244)
Distribution from equity investee	4,257	3,520
Loss on retirements of long-lived assets, non-cash	911	379
Other, net	(20)	(6)
Changes in operating assets and liabilities:
Receivables, net	(65,071)	(55,683)
Inventories, prepaid expenses and other assets	(10,438)	(3,748)
Accounts payable and other liabilities	(4,489)	2,237
Deferred income	62,264	51,629
Income taxes	8,518	5,339
Net cash provided by operating activities	90,270	44,730
INVESTING ACTIVITIES
Capital expenditures	(54,589)	(43,418)
Distribution from equity investee and affiliate	243	1,980
Other, net	48	3
Net cash used in investing activities	(54,298)	(41,435)
FINANCING ACTIVITIES
Payment of long-term debt	(207)	(278)
Reacquisition of previously issued common stock	(6,221)	0
Net cash used in financing activities	(6,428)	(278)
Net increase in cash and cash equivalents	29,544	3,017
Cash and cash equivalents at beginning of period	160,548	158,847
Cash and cash equivalents at end of period	$ 190,092	$ 161,864