Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Nov. 30, 2022 USD ($) preferredSharePurchaseRight $ / shares shares	Aug. 31, 2022 $ / shares	May 31, 2022 $ / shares	Feb. 28, 2022 $ / shares	Nov. 30, 2021 $ / shares	Aug. 31, 2021 $ / shares	May 31, 2021 $ / shares	Feb. 28, 2021 $ / shares	Nov. 30, 2020 $ / shares	Aug. 31, 2020 $ / shares	May 31, 2020 $ / shares	Feb. 29, 2020 $ / shares	Nov. 30, 2022 USD ($) preferredSharePurchaseRight $ / shares shares	Nov. 30, 2021 USD ($) shares	Nov. 30, 2020 USD ($) shares	Apr. 07, 2022 USD ($) shares	Jul. 08, 2021 shares	Jul. 07, 2021 shares	Jul. 17, 2014 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend distribution, number of preferred share purchase rights for each outstanding common stock share | preferredSharePurchaseRight	1												1
Shares included in each purchase right in the 2021 Rights Agreement	0.01												0.01
Purchase price for right holders (per right) | $ / shares	$ 85.00												$ 85.00
Calendar days after a public announcement during which rights to be exercised													10 days
Business days after the commencement of a tender or exchange offer during which rights to be exercised													10 days
Beneficially ownership in company's outstanding common stock to be held by person or group to exercise rights													4.90%
Number of common shares issued for each purchase right	1												1
Price at which company may redeem all of the then outstanding rights (per right) | $ / shares	$ 0.001												$ 0.001
Cash dividends paid per common share (in dollars per share) | $ / shares	0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.09	$ 0.09	$ 0.09
Cash dividends declared per common share (in dollars per share) | $ / shares	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.09	$ 0.09	$ 0.09
Value of treasury stock acquired | $													$ 15,902	$ 12,337	$ 9,503
Retirement of treasury stock, shares															23,487,966
Director Plan SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, number of shares authorized to be repurchased (in shares)																			680,000
Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period, (in shares)														4,668,600
Stock repurchased during period, value | $														$ 188,200
Value of treasury stock acquired | $													15,902	12,337	$ 9,503
Retirement of treasury stock, shares															(23,488,000)
July 2021 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, number of shares authorized to be repurchased (in shares)																	5,000,000
Remaining authorized number of shares available for repurchases																331,400
May 2018 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining authorized number of shares available for repurchases																		2,193,947
April 2022 Stock Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, remaining authorized repurchase amount | $	$ 150,000												$ 150,000			$ 300,000
April 2022 Stock Repurchase Program | Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchased during period, (in shares)													4,927,499
Stock repurchased during period, value | $													$ 150,000
Not Part of a Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of treasury stock acquired | $													$ 15,900	$ 12,300	$ 9,500