Note 8 - Other Intangible Assets (Details) - Other Intangible Assets (USD $) In Thousands, unless otherwise specified																																																					12 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013 Successor [Member] Cost [Member] In Process Research and Development [Member]	May 31, 2013 Successor [Member] Cost [Member] Non-amortizable assets [Member]	May 31, 2013 Successor [Member] Cost [Member] Other Intangible Assets [Member]	May 31, 2013 Successor [Member] Cost [Member] Customer Lists [Member]	May 31, 2013 Successor [Member] Cost [Member] Existing technology and trade names [Member]	May 31, 2013 Successor [Member] Cost [Member] Corporate trade name [Member]	May 31, 2013 Successor [Member] Cost [Member] Below market leasehold interests [Member]	May 31, 2013 Successor [Member] Cost [Member] Deferred licensing costs [Member]	May 31, 2013 Successor [Member] Cost [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] In Process Research and Development [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Non-amortizable assets [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Other Intangible Assets [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Customer Lists [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Existing technology and trade names [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Corporate trade name [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Below market leasehold interests [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member] Deferred licensing costs [Member]	May 31, 2013 Successor [Member] Net of Accumulated Amortization [Member]	May 31, 2013 Successor [Member] Other Intangible Assets [Member]	May 31, 2013 Successor [Member] Customer Lists [Member]	May 31, 2013 Successor [Member] Existing technology and trade names [Member]	May 31, 2013 Successor [Member] Corporate trade name [Member]	May 31, 2013 Successor [Member] Below market leasehold interests [Member]	May 31, 2013 Successor [Member] Deferred licensing costs [Member]	May 31, 2013 Successor [Member]	May 31, 2012 Predecessor [Member] Cost [Member] In Process Research and Development [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Non-amortizable assets [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Other Intangible Assets [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Customer Lists [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Existing technology and trade names [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Corporate trade name [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Below market leasehold interests [Member]	May 31, 2012 Predecessor [Member] Cost [Member] Deferred licensing costs [Member]	May 31, 2012 Predecessor [Member] Cost [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] In Process Research and Development [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Non-amortizable assets [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Other Intangible Assets [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Customer Lists [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Existing technology and trade names [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Corporate trade name [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Below market leasehold interests [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member] Deferred licensing costs [Member]	May 31, 2012 Predecessor [Member] Net of Accumulated Amortization [Member]	May 31, 2012 Predecessor [Member] Other Intangible Assets [Member]	May 31, 2012 Predecessor [Member] Customer Lists [Member]	May 31, 2012 Predecessor [Member] Existing technology and trade names [Member]	May 31, 2012 Predecessor [Member] Corporate trade name [Member]	May 31, 2012 Predecessor [Member] Below market leasehold interests [Member]	May 31, 2012 Predecessor [Member] Deferred licensing costs [Member]	May 31, 2012 Predecessor [Member]	May 31, 2013 Customer Lists [Member]	May 31, 2013 Existing technology and trade names [Member]	May 31, 2013 Corporate trade name [Member]	May 31, 2013 Below market leasehold interests [Member]	May 31, 2013 Deferred licensing costs [Member]
Note 8 - Other Intangible Assets (Details) - Other Intangible Assets [Line Items]
Intangible assets subject to amortization - weighted average life																																																					20 years	11 years	15 years	6 years	6 years
Intangible assets subject to amortization - cost						$ 465,909	$ 291,250	$ 40,000	$ 1,200	$ 99	$ 798,458																				$ 449,665	$ 266,000	$ 40,000	$ 860	$ 99	$ 756,624
Intangible assets subject to amortization - accumulated amortization																					(90,005)	(40,392)	(44,526)	(4,754)	(313)	(20)	(90,005)																			(39,102)	(17,799)	(19,076)	(2,088)	(135)	(4)	(39,102)
Intangible assets subject to amortization - net															425,517	246,724	35,246	887	79	708,453																				431,866	246,924	37,912	725	95	717,522
Intangible assets not subject to amortization - cost			6,150	6,150								6,150	6,150															18,000	18,000								18,000	18,000
Intangible assets not subject to amortization - net			6,150	6,150								6,150	6,150															18,000	18,000								18,000	18,000
Intangible assets, net	714,603	735,522			804,608									714,603																774,624									735,522
Intangible assets, net																					(90,005)	(40,392)	(44,526)	(4,754)	(313)	(20)	(90,005)																			(39,102)	(17,799)	(19,076)	(2,088)	(135)	(4)	(39,102)
Intangible assets, net	$ 714,603	$ 735,522			$ 804,608									$ 714,603																$ 774,624									$ 735,522