Note 7 - Intangible Assets (Detail) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Aug. 19, 2011	Feb. 28, 2013	May 31, 2012
Intangible assets subject to amortization - accumulated amortization		$ (76,447)	$ (39,102)
Intangible assets not subject to amortization - net		699,037	735,522
Intangible assets, net		699,037	735,522
Intangible assets, net		(76,447)	(39,102)
Intangible assets, net		699,037	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		775,484	774,624
Intangible assets, net		775,484	774,624
Intangible assets, net		775,484	774,624
Cost [Member] | Customer Relationships [Member]
Intangible assets subject to amortization - cost		450,525	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		757,484	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		699,037	735,522
Intangible assets, net		699,037	735,522
Intangible assets, net		699,037	735,522
Net of Accumulated Amortization [Member] | Customer Relationships [Member]
Intangible assets subject to amortization - net		415,797	431,866
Net of Accumulated Amortization [Member] | Existing technology and trade names [Member]
Intangible assets subject to amortization - net		228,650	246,924
Net of Accumulated Amortization [Member] | Corporate trade name [Member]
Intangible assets subject to amortization - net		35,912	37,912
Net of Accumulated Amortization [Member] | Below market leasehold interests [Member]
Intangible assets subject to amortization - net		596	725
Net of Accumulated Amortization [Member] | Deferred licensing costs [Member]
Intangible assets subject to amortization - net		82	95
Net of Accumulated Amortization [Member]
Intangible assets subject to amortization - net		681,037	717,522
Other Intangible Assets [Member]
Intangible assets subject to amortization - accumulated amortization		(76,447)	(39,102)
Intangible assets, net		(76,447)	(39,102)
Customer Relationships [Member]
Intangible assets subject to amortization - weighted average life	20 years	20 years
Intangible assets subject to amortization - accumulated amortization		(34,728)	(17,799)
Intangible assets, net		(34,728)	(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		(37,350)	(19,076)
Intangible assets, net		(37,350)	(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		(4,088)	(2,088)
Intangible assets, net		(4,088)	(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		(264)	(135)
Intangible assets, net		(264)	(135)
Deferred licensing costs [Member]
Intangible assets subject to amortization - weighted average life		6 years
Intangible assets subject to amortization - accumulated amortization		(17)	(4)
Intangible assets, net		$ (17)	$ (4)