Segment Information Revenue by Transaction Type and Product Category (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2014	Aug. 31, 2013
Revenue from External Customer [Line Items]
Revenue	$ 556,011	$ 480,288	$ 1,648,477	$ 1,280,956
Subscription Revenue [Member]
Revenue from External Customer [Line Items]
Revenue	432,128	365,025	1,275,848	986,675
Non-subscription Revenue [Member]
Revenue from External Customer [Line Items]
Revenue	123,883	115,263	372,629	294,281
Resources [Member]
Revenue from External Customer [Line Items]
Revenue	229,107	218,345	690,477	630,541
Industrials [Member]
Revenue from External Customer [Line Items]
Revenue	185,267	119,149	538,336	245,997
Horizontal Products [Member]
Revenue from External Customer [Line Items]
Revenue	$ 141,637	$ 142,794	$ 419,664	$ 404,418