Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Grantor Stock Ownership Trust	Treasury Stock	Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Nov. 30, 2018			119,196,000	(8,157,000)	(24,113,000)
Beginning balance at Nov. 30, 2018	$ 2,087,500	$ 11,610	$ 119,196	$ (88,472)	$ (584,397)	$ 753,570	$ 1,897,168	$ 11,610	$ (9,565)
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Net income	$ 268,775						268,775
Other comprehensive income (loss), net of tax	(5,941)								(5,941)
Dividends on common stock	$ (20,370)						(20,370)
Employee stock options/other (in shares)	2,300,004		2,341,000
Employee stock options/other	$ 30,524		$ 2,341			28,183
Stock awards (in shares)			56,000	526,000	27,000
Stock awards	0		$ 56	$ 5,714	$ 341	(6,111)
Stock-based compensation	18,312					18,312
Tax payments associated with stock-based compensation awards (in shares)					(270,000)
Tax payments associated with stock-based compensation awards	(7,288)				$ (7,288)
Ending balance (in shares) at Nov. 30, 2019			121,593,000	(7,631,000)	(24,356,000)
Ending balance at Nov. 30, 2019	$ 2,383,122	1,510	$ 121,593	$ (82,758)	$ (591,344)	793,954	2,157,183	1,510	(15,506)
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Reclassification of stranded tax effects							1,643		(1,643)
Net income	$ 296,243						296,243
Other comprehensive income (loss), net of tax	(5,127)								(5,127)
Dividends on common stock	$ (38,065)						(38,065)
Employee stock options/other (in shares)	1,694,767		1,696,000		17,000
Employee stock options/other	$ 16,058		$ 1,696		$ 421	13,941
Stock awards (in shares)			68,000	507,000	(15,000)
Stock awards	0		$ 68	$ 5,493	$ (441)	(5,120)
Stock-based compensation	21,531					21,531
Tax payments associated with stock-based compensation awards (in shares)					(241,000)
Tax payments associated with stock-based compensation awards	$ (9,503)				$ (9,503)
Retirement of treasury stock (in shares)	(23,487,966)		(23,488,000)		23,488,000
Retirement of treasury stock			$ (23,488)		$ 573,106		(549,618)
Ending balance (in shares) at Nov. 30, 2020			99,869,000	(7,124,000)	(1,107,000)
Ending balance at Nov. 30, 2020	$ 2,665,769	$ (226)	$ 99,869	$ (77,265)	$ (27,761)	824,306	1,868,896	$ (226)	(22,276)
Reclassification of stranded tax effects	1,600
Net income	564,746						564,746
Other comprehensive income (loss), net of tax	3,157								3,157
Dividends on common stock	$ (54,052)						(54,052)
Employee stock options/other (in shares)	788,321		798,000		0
Employee stock options/other	$ 11,689		$ 798		$ 0	10,891
Stock awards (in shares)			44,000	419,000	199,000
Stock awards	0		$ 44	$ 4,547	$ 10,890	(15,481)
Stock-based compensation	28,904					28,904
Stock repurchases (in shares)					(4,669,000)
Stock repurchases	(188,175)				$ (188,175)
Tax payments associated with stock-based compensation awards (in shares)					(208,000)
Tax payments associated with stock-based compensation awards	(12,337)				$ (12,337)
Ending balance (in shares) at Nov. 30, 2021			100,711,000	(6,705,000)	(5,785,000)
Ending balance at Nov. 30, 2021	$ 3,019,475		$ 100,711	$ (72,718)	$ (217,383)	$ 848,620	$ 2,379,364		$ (19,119)