Stockholders' Equity - Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 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	$ (964)	$ 69	(2,418)	(98)
Reclassifications included in net (loss) income	219	189	646	557
Total other comprehensive (loss) income, net of tax	(745)	258	(1,772)	459
Balance at end of period	90,508	96,871	90,508	96,871
Accumulated Other Comprehensive Income (Loss)
Change in accumulated other comprehensive loss, net of tax
Balance at beginning of period			(1,085)	(835)
Other comprehensive (loss) income before reclassifications			(2,418)	(98)
Reclassifications included in net (loss) income			646	557
Total other comprehensive (loss) income, net of tax	(745)	258	(1,772)	459
Balance at end of period	(2,857)	(376)	(2,857)	(376)
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	(710)	(54)	(1,825)	(512)
Reclassifications included in net (loss) income			646	557
Total other comprehensive (loss) income, net of tax			(1,179)	45
Balance at end of period	(2,923)	(1,419)	(2,923)	(1,419)
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			(593)	414
Total other comprehensive (loss) income, net of tax			(593)	414
Balance at end of period	$ 66	$ 1,043	$ 66	$ 1,043