Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Nov. 30, 2021
Equity [Abstract]  
Schedule of Changes in the Balances of Each Component of Accumulated Other Comprehensive Loss
The following table presents the changes in the balances of each component of accumulated other comprehensive loss (in thousands):
Postretirement Benefit Plan Adjustments
Total Accumulated Other Comprehensive Loss
Balance at November 30, 2019$(15,506)
Other comprehensive loss before reclassifications(8,412)
Amounts reclassified from accumulated other comprehensive loss1,388 
Income tax benefit related to items of other comprehensive loss1,897 
Other comprehensive loss, net of tax(5,127)
Reclassification of stranded tax effects to retained earnings(1,643)
Balance at November 30, 2020(22,276)
Other comprehensive income before reclassifications2,664 
Amounts reclassified from accumulated other comprehensive loss1,661 
Income tax expense related to items of other comprehensive income(1,168)
Other comprehensive income, net of tax3,157 
Balance at November 30, 2021$(19,119)
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Loss
The amounts reclassified from accumulated other comprehensive loss consisted of the following (in thousands):
Years Ended November 30,
Details About Accumulated Other Comprehensive Loss Components
202120202019
Postretirement benefit plan adjustments
Amortization of net actuarial loss $1,575 $963 $218 
Amortization of prior service cost 86 425 1,556 
Settlement loss— — 356 
Total reclassifications (a)$1,661 $1,388 $2,130 
(a)The accumulated other comprehensive loss components are included in the computation of net periodic benefit costs as further discussed in Note 22 – Postretirement Benefits.