Benefit Plans (Tables)

12 Months Ended

Nov. 30, 2022

Retirement Benefits [Abstract]

Changes in Projected Benefit Obligation

A summary of activity with respect to both plans is as follows (in thousands):

	Year Ended November 30,
	2022		2021
Change in projected benefit obligation:
Projected benefit obligation, beginning of year	$	226,728	$	236,572
Interest cost	5,805		4,946
Actuarial (gains) losses	(47,362)		(4,977)
Settlements	(4,702)		—
Benefits paid	(8,403)		(9,813)
Projected benefit obligation, end of year	$	172,066	$	226,728
Change in plan assets:
Fair value of plan assets, beginning of year	$	199,215	$	190,220
Actual return on plan assets	(37,574)		13,619
Employer contributions	1,000		7,089
Benefits paid	(8,403)		(9,813)
Settlements	(4,702)		—
Administrative expenses paid	(2,264)		(1,900)
Fair value of plan assets, end of year	$	147,272	$	199,215
Funded status at end of year	$	(24,794)	$	(27,513)

Components of Net Periodic Pension (Benefit) Cost

The following table summarizes the components of net periodic pension cost and other amounts recognized in other comprehensive income (loss) excluding taxes (in thousands):

	Year Ended November 30,
	2022		2021		2020
Interest cost	$	5,805	$	4,946	$	6,349
Expected return on plan assets	(7,311)		(8,433)		(7,934)
Settlement losses	833		—		376
Actuarial losses	3,348		4,192		3,453
Net periodic pension cost	$	2,675	$	705	$	2,244
Amounts recognized in other comprehensive income (loss):
Net (gains) losses arising during the period	$	(211)	$	(8,264)	$	3,821
Settlement losses	(833)		—		(376)
Amortization of net loss	(3,348)		(4,192)		(3,453)
Total recognized in other comprehensive income (loss)	$	(4,392)	$	(12,456)	$	(8)
Net amount recognized in net periodic benefit cost and other   comprehensive income (loss)	$	(1,717)	$	(11,751)	$	2,236

Assumptions Used to Determine the Present Value of the Projected Benefit Obligations and Net Periodic Pension Costs

The assumptions used are as follows:

	November 30,
	2022		2021
WilTel Plan
Discount rate used to determine benefit obligation	4.90	%	2.60	%
Weighted-average assumptions used to determine net pension cost:
Discount rate	2.60	%	2.20	%
Expected long-term return on plan assets	6.00	%	7.00	%
U.S. Pension Plan
Discount rate used to determine benefit obligation	4.80	%	2.40	%
Weighted-average assumptions used to determine net pension cost:
Discount rate	2.40	%	2.00	%
Expected long-term return on plan assets	5.00	%	5.00	%

Expected Benefit Payments

The following pension benefit payments are expected to be paid (in thousands):

Fiscal Year:
2023	$	15,869
2024	12,362
2025	12,015
2026	12,933
2027	13,487
2028 – 2032	63,356