Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015	May 30, 2016	Nov. 30, 2015
Discontinued Operations [Abstract]
Proceeds from sale of assets			$ 190,215	$ 0
Contingent consideration	$ 35,000		35,000
Gain on disposal of discontinued operations, net of tax			300
Revenue from discontinued operations	26,738	$ 34,467	53,579	66,852
Income from discontinued operations before income taxes	51,601	6,760	57,381	9,240
Tax expense	(46,347)	(2,481)	(48,310)	(3,391)
Income from discontinued operations, net	5,254	$ 4,279	9,071	$ 5,849
Current assets					$ 2,484	$ 19,505
Property and equipment, net					20,329	16,391
Intangible assets, net					58,780	58,298
Goodwill					103,274	99,183
Total assets	0		0		184,867	193,377
Current liabilities					551	1,255
Deferred revenue					26,497	19,576
Deferred income taxes					11,887	11,266
Total liabilities	$ 0		$ 0		$ 38,935	$ 32,097