Stockholders' Equity - Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Change in accumulated other comprehensive loss, net of tax
Balance at beginning of period	$ 94,809	$ 95,879
Other comprehensive (loss) income before reclassifications	(1,397)	(311)
Amounts reclassified	213	177
Total other comprehensive loss, net of tax	(1,184)	(134)
Balance at end of period	93,361	95,130
Accumulated Other Comprehensive Loss
Change in accumulated other comprehensive loss, net of tax
Balance at beginning of period	(1,085)	(835)
Other comprehensive (loss) income before reclassifications	(1,397)	(311)
Amounts reclassified	213	177
Total other comprehensive loss, net of tax	(1,184)	(134)
Balance at end of period	(2,269)	(969)
Unrealized loss on cash flow hedges
Change in accumulated other comprehensive loss, net of tax
Balance at beginning of period	(1,744)	(1,464)
Other comprehensive (loss) income before reclassifications	(1,141)	(326)
Amounts reclassified	213	177
Total other comprehensive loss, net of tax	(928)	(149)
Balance at end of period	(2,672)	(1,613)
Accumulated Net Unrealized Gain From Change In Fair Value And Foreign Currency [Member]
Change in accumulated other comprehensive loss, net of tax
Balance at beginning of period	659	629
Other comprehensive (loss) income before reclassifications	(256)	15
Total other comprehensive loss, net of tax	(256)	15
Balance at end of period	$ 403	$ 644