Benefit Plans (Tables)

12 Months Ended

Nov. 30, 2024

Retirement Benefits [Abstract]

Schedule of Changes in Projected Benefit Obligation

Activity with respect to both plans:

	Year Ended November 30,
$ in thousands	2024	2023
Change in projected benefit obligation:
Projected benefit obligation, beginning of year .......	$163,870	$172,066
Interest cost ..................................................................	7,986	7,981
Actuarial (gains) losses ..............................................	3,455	(5,289)
Settlements ...................................................................	—	—
Benefits paid .................................................................	(12,238)	(10,888)
Projected benefit obligation, end of year ................	$163,073	$163,870
Change in plan assets:
Fair value of plan assets, beginning of year .............	$141,177	$147,272
Actual return on plan assets .......................................	18,980	6,094
Employer contributions ...............................................	3,530	1,000
Benefits paid .................................................................	(12,238)	(10,888)
Settlements ...................................................................	—	—
Administrative expenses paid ....................................	(1,778)	(2,301)
Fair value of plan assets, end of year .......................	$149,671	$141,177
Funded status at end of year .....................................	$(13,402)	$(22,693)

Schedule of Components of Net Periodic Pension (Benefit) Cost

Components of net periodic pension cost and other amounts

recognized in other comprehensive income (loss) excluding

taxes:

	Year Ended November 30,
$ in thousands	2024	2023	2022
Interest cost .....................................	$7,986	$7,981	$5,805
Expected return on plan assets .....	(5,796)	(6,411)	(7,311)
Amortization of net losses .............	291	—	—
Settlement losses ............................	—	370	833
Actuarial losses ...............................	193	413	3,348
Net periodic pension cost ..............	$2,674	$2,353	$2,675
Amounts recognized in other comprehensive income (loss):
Net (gains) losses arising during the period ..........................................	$(7,951)	$(2,670)	$(211)
Settlement losses ............................	—	—	(833)
Amortization of net losses .............	(485)	782	(3,348)
Total recognized in other comprehensive income (loss) ......	$(8,436)	$(1,888)	$(4,392)
Net amount recognized in net periodic benefit cost and other   comprehensive income (loss) ....	$(5,762)	$465	$(1,717)

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

Assumptions:

	November 30,
	2024	2023
WilTel Plan
Discount rate used to determine benefit obligation	5.10%	5.30%
Weighted-average assumptions used to determine net pension cost:
Discount rate .........................................................	5.30%	4.90%
Expected long-term return on plan assets ........	6.00%	6.00%
U.S. Pension Plan
Discount rate used to determine benefit obligation	4.90%	5.20%
Weighted-average assumptions used to determine net pension cost:
Discount rate .........................................................	5.20%	4.80%
Expected long-term return on plan assets ........	5.00%	5.00%

Schedule of Expected Benefit Payments

Pension benefit payments expected to be paid (in thousands):

Fiscal Year:
2025 ............................................................................................................	$25,185
2026 ............................................................................................................	13,357
2027 ............................................................................................................	13,563
2028 ............................................................................................................	13,100
2029 ............................................................................................................	13,339
Years 2030 - 2034 .....................................................................................	60,892