Revenues from Contracts with Customers - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 19,788	$ 6,817
Bad debt expense, net of reversals	626	1,340
Charge-offs	(425)	(207)
Recoveries collected	(2,384)	(301)
Ending balance	14,011	7,649
Adjustment for change in accounting principle for current expected credit losses
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ (3,594)	$ 0