Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Nov. 30, 2020

Equity [Abstract]

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, 2018	$	(9,565)
Other comprehensive loss before reclassifications	(10,268)
Amounts reclassified from accumulated other comprehensive loss	2,130
Income tax benefit related to items of other comprehensive loss	2,197
Other comprehensive loss, net of tax	(5,941)

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 loss	1,388
Income tax benefit related to items of other comprehensive loss	1,897
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)

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	2020		2019		2018
Postretirement benefit plan adjustments
Amortization of net actuarial loss	$	963	$	218	$	336
Amortization of prior service cost	425		1,556		1,556
Settlement loss	—		356		—
Total reclassifications (a)	$	1,388	$	2,130	$	1,892

(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.