Postretirement Benefits (Tables)

12 Months Ended

Nov. 30, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The net periodic benefit cost of our Retirement Plan and DBO Plan is included in selling, general and administrative expenses in our consolidated statements of operations and consisted of the following (in thousands):

	Years Ended November 30,
	2021		2020		2019
Interest cost	$	1,593	$	1,950	$	2,478
Amortization of prior service cost	85		425		1,556
Service cost	1,152		1,077		958
Amortization of net actuarial loss	1,443		912		218
Settlement loss	—		—		356
Total	$	4,273	$	4,364	$	5,566