Stockholders' Equity - Accumulated Other Comprehensive Income Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Available for Sale Securities
Shares of Centaur Media common stock sold	1,952,462
Shares of common stock held in Centaur Media	1,952,462,000	1,952,462
Reclassed from accumulated other comprehensive loss	$ 172
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	(1,049)
Other comprehensive (loss) income before reclassifications	114	$ (820)	$ (1,028)
Reclassifications included in net income	651	856	778
Total other comprehensive income (loss), net of tax	765	36	(250)
Balance at the end of the year	(284)	(1,049)
Unrealized Gain (Loss) on Cash Flow Hedges
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	(1,062)	(1,744)	(1,464)
Other comprehensive (loss) income before reclassifications	(45)	(174)	(1,058)
Reclassifications included in net income	823	856	778
Total other comprehensive income (loss), net of tax	778	682	(280)
Balance at the end of the year	(284)	(1,062)	(1,744)
Unrealized Gain (Loss) on Investment in Centaur Media
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	13	659	629
Other comprehensive (loss) income before reclassifications	159	(646)	30
Reclassifications included in net income	(172)
Total other comprehensive income (loss), net of tax	(13)	(646)	30
Balance at the end of the year		13	659
Accumulated Other Comprehensive Loss
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the year	(1,049)	(1,085)	(835)
Other comprehensive (loss) income before reclassifications	114	(820)	(1,028)
Reclassifications included in net income	651	856	778
Total other comprehensive income (loss), net of tax	765	36	(250)
Balance at the end of the year	$ (284)	$ (1,049)	$ (1,085)