Segment Information (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
Segment Reporting Information [Line Items]
Revenue	$ 568,008	$ 418,143	$ 1,092,466	$ 800,668
Operating income	86,773	61,584	142,427	97,984
Depreciation and amortization	49,142	32,877	98,779	65,356
Disclosure of Major Customers	0	0	0	0
Americas Segment [Member]
Segment Reporting Information [Line Items]
Revenue	376,787	257,625	727,207	486,791
Operating income	93,587	79,515	171,197	141,648
Depreciation and amortization	41,395	25,181	82,568	49,465
EMEA Segment [Member]
Segment Reporting Information [Line Items]
Revenue	138,847	112,944	265,708	222,415
Operating income	34,465	20,485	59,060	36,471
Depreciation and amortization	5,314	5,474	11,105	11,391
APAC Segment [Member]
Segment Reporting Information [Line Items]
Revenue	52,374	47,574	99,551	91,462
Operating income	12,938	10,248	23,000	19,997
Depreciation and amortization	475	476	1,088	937
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating income	(54,217)	(48,664)	(110,830)	(100,132)
Depreciation and amortization	$ 1,958	$ 1,746	$ 4,018	$ 3,563