Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013
Net sales	$ 843.6us-gaap_SalesRevenueNet	$ 825.7us-gaap_SalesRevenueNet	$ 1,618.4us-gaap_SalesRevenueNet	$ 1,556.4us-gaap_SalesRevenueNet
Cost of sales	183.8us-gaap_CostOfRevenue	255.1us-gaap_CostOfRevenue	399.7us-gaap_CostOfRevenue	463.1us-gaap_CostOfRevenue
Gross profit	659.8us-gaap_GrossProfit	570.6us-gaap_GrossProfit	1,218.7us-gaap_GrossProfit	1,093.3us-gaap_GrossProfit
Selling, general and administrative expense	367.7	340.4	729.4	653.7
Research and development expense	42.9us-gaap_ResearchAndDevelopmentExpense	41.4us-gaap_ResearchAndDevelopmentExpense	85.7us-gaap_ResearchAndDevelopmentExpense	78.9us-gaap_ResearchAndDevelopmentExpense
Amortization	79.6us-gaap_AmortizationOfIntangibleAssets	75.2us-gaap_AmortizationOfIntangibleAssets	151.5us-gaap_AmortizationOfIntangibleAssets	150.7us-gaap_AmortizationOfIntangibleAssets
Operating income	169.6us-gaap_OperatingIncomeLoss	113.6us-gaap_OperatingIncomeLoss	252.1us-gaap_OperatingIncomeLoss	210.0us-gaap_OperatingIncomeLoss
Interest expense	78.5us-gaap_InterestExpense	105.7us-gaap_InterestExpense	158.6us-gaap_InterestExpense	193.3us-gaap_InterestExpense
Other (income) expense	(2.1)us-gaap_OtherNonoperatingIncomeExpense	3.7us-gaap_OtherNonoperatingIncomeExpense	(6.3)us-gaap_OtherNonoperatingIncomeExpense	5.9us-gaap_OtherNonoperatingIncomeExpense
Other expense, net	76.4us-gaap_NonoperatingIncomeExpense	109.4us-gaap_NonoperatingIncomeExpense	152.3us-gaap_NonoperatingIncomeExpense	199.2us-gaap_NonoperatingIncomeExpense
Income before income taxes	93.2	4.2	99.8	10.8
Provision (benefit) from income taxes	3.4us-gaap_IncomeTaxExpenseBenefit	(0.7)us-gaap_IncomeTaxExpenseBenefit	2.7us-gaap_IncomeTaxExpenseBenefit	(25.2)us-gaap_IncomeTaxExpenseBenefit
Net income	89.8us-gaap_NetIncomeLoss	4.9us-gaap_NetIncomeLoss	97.1us-gaap_NetIncomeLoss	36.0us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax:
Change in unrealized holding value on available-for-sale securities	0	1.3	0.1	1.3
Interest rate swap unrealized gains (losses)	(0.4)	8.8	3.2	22.3
Foreign currency related gains (losses)	(137.3)	27.2	(185.5)	31.7
Unrecognized actuarial gains (losses)	1.6	(0.2)	1.9	0
Other comprehensive income (loss)	(136.1)	37.1	(180.3)	55.3
Comprehensive income (loss)	(46.3)us-gaap_ComprehensiveIncomeNetOfTax	42.0us-gaap_ComprehensiveIncomeNetOfTax	(83.2)us-gaap_ComprehensiveIncomeNetOfTax	91.3us-gaap_ComprehensiveIncomeNetOfTax
Biomet, Inc. [Member]
Net sales	843.6	825.7	1,618.4	1,556.4
Cost of sales	183.8	255.1	399.7	463.1
Gross profit	659.8	570.6	1,218.7	1,093.3
Selling, general and administrative expense	367.7	340.4	729.4	653.7
Research and development expense	42.9	41.4	85.7	78.9
Amortization	79.6	75.2	151.5	150.7
Operating income	169.6	113.6	252.1	210.0
Interest expense	78.5	105.7	158.6	193.3
Other (income) expense	(2.1)	3.7	(6.3)	5.9
Other expense, net	76.4	109.4	152.3	199.2
Income before income taxes	93.2	4.2	99.8	10.8
Provision (benefit) from income taxes	3.4	(0.7)	2.7	(25.2)
Net income	89.8	4.9	97.1	36.0
Other comprehensive income (loss), net of tax:
Change in unrealized holding value on available-for-sale securities	0	1.3	0.1	1.3
Interest rate swap unrealized gains (losses)	(0.4)	8.8	3.2	22.3
Foreign currency related gains (losses)	(137.3)	27.2	(185.5)	31.7
Unrecognized actuarial gains (losses)	1.6	(0.2)	1.9	0
Other comprehensive income (loss)	(136.1)	37.1	(180.3)	55.3
Comprehensive income (loss)	$ (46.3)	$ 42.0	$ (83.2)	$ 91.3

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275