Revenues from Contracts with Customers - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 4,824	$ 19,788
Bad debt expense, net of reversals	340	626
Charge-offs	(50)	(425)
Recoveries collected	(605)	(2,384)
Ending balance	4,509	14,011
Adjustment for change in accounting principle for current expected credit losses
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 0	$ (3,594)