Stockholders' Equity - AOCI T2 rows (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2018	Feb. 28, 2017
Accumulated other comprehensive loss
Reclassifications, before tax	$ 244	$ 339
Reclassifications, tax (expense) benefit	(52)	(130)
Reclassifications, net of tax	192	209
Other changes, before reclassifications, before tax	2,502	527
Other changes, before reclassifications, tax (expense) benefit	(553)	(196)
Total other changes before reclassifications, net of tax	1,949	331
Total other comprehensive income, net of tax	2,141	540
Accumulated Other Comprehensive Loss
Accumulated other comprehensive loss
Reclassifications, net of tax	192	209
Total other changes before reclassifications, net of tax	1,949	331
Total other comprehensive (loss) income, before tax	2,746	866
Total other comprehensive income (loss), tax	(605)	(326)
Total other comprehensive income, net of tax	2,141	540
Unrealized Gain (Loss) on Cash Flow Hedges
Accumulated other comprehensive loss
Reclassifications, net of tax	192	209
Other changes, before reclassifications, before tax	2,502	332
Other changes, before reclassifications, tax (expense) benefit	(553)	(128)
Total other changes before reclassifications, net of tax	1,949	204
Total other comprehensive income, net of tax	2,105	413
Unrealized Gain (Loss) on Cash Flow Hedges | Interest Expense [Member]
Accumulated other comprehensive loss
Reclassifications, before tax	244	339
Reclassifications, tax (expense) benefit	52	130
Reclassifications, net of tax	$ 192	209
Mark-to-market foreign currency adjustment
Accumulated other comprehensive loss
Other changes, before reclassifications, before tax		(12)
Other changes, before reclassifications, tax (expense) benefit		4
Total other changes before reclassifications, net of tax		(8)
Mark-to-market fair value adjustment
Accumulated other comprehensive loss
Other changes, before reclassifications, before tax		207
Other changes, before reclassifications, tax (expense) benefit		(72)
Total other changes before reclassifications, net of tax		$ 135