Benefit Plans - Components of Net Periodic Pension Cost (Details) - United States - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
Change in projected benefit obligation:
Interest cost on projected benefit obligation	$ 1,409	$ 1,801	$ 2,303
Expected return on plan assets	(3,094)	(3,477)	(3,008)
Net amortization	549	252	122
Settlement losses	0	376	0
Other costs	400	470	500
Net periodic pension cost	$ (736)	$ (578)	$ (83)