Benefit Plans - Changes in Projected Benefit Obligation and Components of Net Periodic Pension Costs (Details) - United States - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
Change in projected benefit obligation:
Projected benefit obligation, beginning of period	$ 71,541	$ 63,222
Interest cost	1,409	1,801	$ 2,303
Actuarial losses	487	9,874
Administrative expenses paid	(186)	(346)
Benefits paid	(2,504)	(1,003)
Settlements	0	(2,477)
Other costs	400	470	500
Projected benefit obligation, end of period	71,147	71,541	63,222
Change in plan assets:
Fair value of assets, beginning of period	63,161	56,980
Benefits paid	(2,504)	(1,003)
Administrative expenses paid	(186)	(346)
Actual return on plan assets	2,064	10,007
Settlements	0	(2,477)
Fair value of assets, end of period	62,535	63,161	$ 56,980
Funded status at end of period	$ (8,612)	$ (8,380)