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Divestitures (Income (Loss) from Discontinued Operations) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 21 Months Ended
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2013
Lines
Discontinued Operations and Disposal Groups [Abstract]          
Number of product lines divested         11
Revenue $ 0 $ 537 $ 0 $ 16,143  
Loss before income taxes 0 (6,221) 0 (9,338)  
Income tax benefit 0 (1,790) 0 (2,223)  
Gain on sale, net of tax 0 22,070 0 41,827  
Income from discontinued operations, net $ 0 $ 17,639 $ 0 $ 34,712