Note 7 - Intangible Assets (Detail) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Aug. 19, 2011	Nov. 30, 2012	May 31, 2012
Intangible assets subject to amortization - accumulated amortization		$ (64,063)	$ (39,102)
Intangible assets not subject to amortization - net		712,254	735,522
Intangible assets, net		712,254	735,522
Intangible assets, net		(64,063)	(39,102)
Intangible assets, net		712,254	735,522
Cost [Member] | In-process research and development [Member]
Intangible assets not subject to amortization - cost		18,000	18,000
Cost [Member] | Non-amortizable assets [Member]
Intangible assets not subject to amortization - cost		18,000	18,000
Cost [Member] | Other Intangible Assets [Member]
Intangible assets not subject to amortization - net		776,317	774,624
Intangible assets, net		776,317	774,624
Intangible assets, net		776,317	774,624
Cost [Member] | Customer Relationships [Member]
Intangible assets subject to amortization - cost		451,358	449,665
Cost [Member] | Existing technology and trade names [Member]
Intangible assets subject to amortization - cost		266,000	266,000
Cost [Member] | Corporate trade name [Member]
Intangible assets subject to amortization - cost		40,000	40,000
Cost [Member] | Below market leasehold interests [Member]
Intangible assets subject to amortization - cost		860	860
Cost [Member] | Deferred licensing costs [Member]
Intangible assets subject to amortization - cost		99	99
Cost [Member]
Intangible assets subject to amortization - cost		758,317	756,624
Net of Accumulated Amortization [Member] | In-process research and development [Member]
Intangible assets not subject to amortization - net		18,000	18,000
Intangible assets, net		18,000	18,000
Intangible assets, net		18,000	18,000
Net of Accumulated Amortization [Member] | Non-amortizable assets [Member]
Intangible assets not subject to amortization - net		18,000	18,000
Intangible assets, net		18,000	18,000
Intangible assets, net		18,000	18,000
Net of Accumulated Amortization [Member] | Other Intangible Assets [Member]
Intangible assets not subject to amortization - net		712,254	735,522
Intangible assets, net		712,254	735,522
Intangible assets, net		712,254	735,522
Net of Accumulated Amortization [Member] | Customer Relationships [Member]
Intangible assets subject to amortization - net		422,208	431,866
Net of Accumulated Amortization [Member] | Existing technology and trade names [Member]
Intangible assets subject to amortization - net		234,742	246,924
Net of Accumulated Amortization [Member] | Corporate trade name [Member]
Intangible assets subject to amortization - net		36,579	37,912
Net of Accumulated Amortization [Member] | Below market leasehold interests [Member]
Intangible assets subject to amortization - net		639	725
Net of Accumulated Amortization [Member] | Deferred licensing costs [Member]
Intangible assets subject to amortization - net		86	95
Net of Accumulated Amortization [Member]
Intangible assets subject to amortization - net		694,254	717,522
Other Intangible Assets [Member]
Intangible assets subject to amortization - accumulated amortization		(64,063)	(39,102)
Intangible assets, net		(64,063)	(39,102)
Customer Relationships [Member]
Intangible assets subject to amortization - weighted average life	20 years	20 years
Intangible assets subject to amortization - accumulated amortization		(29,150)	(17,799)
Intangible assets, net		(29,150)	(17,799)
Existing technology and trade names [Member]
Intangible assets subject to amortization - weighted average life	11 years	11 years
Intangible assets subject to amortization - accumulated amortization		(31,258)	(19,076)
Intangible assets, net		(31,258)	(19,076)
Corporate trade name [Member]
Intangible assets subject to amortization - weighted average life	15 years	15 years
Intangible assets subject to amortization - accumulated amortization		(3,421)	(2,088)
Intangible assets, net		(3,421)	(2,088)
Below market leasehold interests [Member]
Intangible assets subject to amortization - weighted average life	5 years	5 years
Intangible assets subject to amortization - accumulated amortization		(221)	(135)
Intangible assets, net		(221)	(135)
Deferred licensing costs [Member]
Intangible assets subject to amortization - weighted average life		6 years
Intangible assets subject to amortization - accumulated amortization		(13)	(4)
Intangible assets, net		$ (13)	$ (4)