Consolidated Statement of Shareholders' Equity - 6 months ended May. 31, 2015 - USD ($) $ in Thousands	Total	Common Stock [Member] Class A Common Stock $.01 Par Value	Common Stock [Member] Class B Common Stock $.01 Par Value	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Nov. 30, 2014	$ 1,346,432	$ 262	$ 200	$ 447,518	$ 902,433	$ (3,981)
Activity 12/1/14 — 5/31/15:
Net income	28,308				28,308
Comprehensive income	329					329
Cash dividend ($0.26 per share)	12,127				12,127
Reacquisition of previously issued common stock	983			983
Conversion of Class B Common Stock to Class A Common Stock		1	(1)
Other	(331)	1		(332)
Stock-based compensation	1,438	0		1,438
Balance at May. 31, 2015	$ 1,363,066	$ 264	$ 199	$ 447,641	$ 918,614	$ (3,652)