Stockholders' Equity - Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	$ (3,141)
Other comprehensive (loss) income before reclassifications	(2,524)	$ (1,500)
Reclassifications included in net loss	95	42
Balance at the end of the year	(5,570)
Unrealized Gain (Loss) on Cash Flow Hedges
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	(3,141)	2,395
Other comprehensive (loss) income before reclassifications	(2,524)	(1,500)
Reclassifications included in net loss	95	42
Net activity for other comprehensive income	(2,429)	(1,458)
Balance at the end of the year	$ (5,570)	$ 937