Stockholders' Equity - Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year			$ 2,395
Reclassifications included in net income (loss)	$ 26	$ 146	68	$ 338
Balance at the end of the year	(1,791)		(1,791)
Unrealized Gain (Loss) on Cash Flow Hedges
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year			2,395	(284)
Other comprehensive income before reclassifications	(2,754)	7	(4,254)	1,956
Reclassifications included in net income (loss)			68	338
Adoption of ASU 2018-02 - reclassification of deferred taxes to retained earnings				(36)
Net activity for other comprehensive income			(4,186)	2,258
Balance at the end of the year	$ (1,791)	$ 1,974	$ (1,791)	$ 1,974