Divestitures (Income (Loss) from Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		24 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013	Nov. 30, 2013 Lines
Discontinued Operations and Disposal Groups [Abstract]
Number of product lines divested					11
Revenue	$ 0	$ 4,431	$ 0	$ 15,606
Income (loss) before income taxes	0	(4,802)	0	(3,117)
Income tax (benefit) provision	0	(570)	0	(433)
Gain on sale, net of tax	0	0	0	19,757
Income (loss) from discontinued operations, net	$ 0	$ (4,232)	$ 0	$ 17,073