SEGMENT INFORMATION - Summary of Revenue by Geographic Region (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 252,299	$ 245,846	$ 505,177	$ 483,636
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	130,004	130,450	257,576	248,104
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	13,991	12,180	30,717	21,941
Total Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	143,995	142,630	288,293	270,045
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	17,016	18,095	36,948	40,083
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	66,810	59,429	132,742	122,865
Total EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	83,826	77,524	169,690	162,948
APJ
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 24,478	$ 25,692	$ 47,194	$ 50,643