Earnings Per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Numerator:
Net income (loss) from continuing operations	$ 12,502	$ (37,459)
Net income (loss) from discontinued operations	(64)	(17)
Net income (loss)	12,438	(37,476)
Add back convertible notes interest	930	0
Numerator for diluted earnings per share - net income (loss) attributable to common stockholders	$ 13,368	$ (37,476)
Basic income (loss) per common share:
Basic income (loss) from continuing operations (in dollars per share)	$ 0.08	$ (0.24)
Basic income (loss) from discontinued operations (in dollars per share)	0.00	0.00
Net income (loss) - basic (in dollars per share)	0.08	(0.24)
Diluted income (loss) per common share:
Diluted income (loss) from continuing operations (in dollars per share)	0.07	(0.24)
Diluted income (loss) from discontinued operations (in dollars per share)	0.00	0.00
Net income (loss) - diluted (in dollars per share)	$ 0.07	$ (0.24)
Denominator:
Basic (in shares)	157,568,811	156,919,099
Diluted (in shares)	199,922,673	156,919,099