Intangible Assets (Tables)

6 Months Ended

May 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

The following table presents details of our intangible assets, other than goodwill, as of May 31, 2014 and November 30, 2013 (in thousands):

	As of May 31, 2014							As of November 30, 2013
	Gross		Accumulated Amortization			Net		Gross		Accumulated Amortization			Net
Intangible assets subject to amortization:
Information databases	$	616,946	$	(209,911	)	$	407,035	$	633,347	$	(194,904	)	$	438,443
Customer relationships	460,277		(99,959		)	360,318		470,632		(90,827		)	379,805
Non-compete agreements	2,595		(1,871		)	724		2,717		(1,653		)	1,064
Developed computer software	151,700		(66,452		)	85,248		159,413		(64,514		)	94,899
Trademarks	166,834		(19,288		)	147,546		167,179		(13,300		)	153,879
Other	17,516		(5,373		)	12,143		25,404		(13,423		)	11,981
Total	$	1,415,868	$	(402,854	)	$	1,013,014	$	1,458,692	$	(378,621	)	$	1,080,071
Intangible assets not subject to amortization:
Trademarks	62,792		—			62,792		63,144		—			63,144
Perpetual licenses	1,277		—			1,277		1,249		—			1,249
Total intangible assets	$	1,479,937	$	(402,854	)	$	1,077,083	$	1,523,085	$	(378,621	)	$	1,144,464

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table presents the estimated future amortization expense related to intangible assets held as of May 31, 2014 (in thousands):

Year	Amount
Remainder of 2014	$	65,863
2015	$	127,849
2016	$	118,678
2017	$	104,239
2018	$	92,224
Thereafter	$	504,161