SEGMENT INFORMATION: (Operating Segments) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
May 31, 2013
May 31, 2012
May 31, 2013
May 31, 2012
Nov. 30, 2012
Segment Reporting Information [Line Items]          
Revenue $ 2,591,361 $ 2,482,799 $ 5,052,200 $ 4,943,493  
Income from continuing operations before non-operating items, income taxes and noncontrolling interest 51,964 59,321 107,904 123,309  
Total assets 2,875,934   2,875,934   2,963,262
Distribution [Member]
          
Segment Reporting Information [Line Items]          
Revenue 2,544,709 2,442,963 4,961,613 4,866,227  
Income from continuing operations before non-operating items, income taxes and noncontrolling interest 47,747 56,387 99,809 118,752  
Total assets 2,761,136   2,761,136   2,848,689
GBS [Member]
          
Segment Reporting Information [Line Items]          
Revenue 55,050 47,714 107,533 92,776  
Income from continuing operations before non-operating items, income taxes and noncontrolling interest 4,352 2,578 8,250 4,570  
Total assets 311,125   311,125   316,993
Inter-Segment Elimination [Member]
          
Segment Reporting Information [Line Items]          
Revenue (8,398) (7,878) (16,946) (15,510)  
Income from continuing operations before non-operating items, income taxes and noncontrolling interest (135) 356 (155) (13)  
Total assets $ (196,327)   $ (196,327)   $ (202,420)