Fair Values Of Assets Acquired Including Current Measurement Period Adjustments to Fair Value (Detail) (Avid Health, Inc, USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Acquisition Date Preliminary Fair Value
Business Acquisition [Line Items]
Inventory	$ 38.5
Accounts receivables, net	29.6
Other current assets	1.9
Property, plant and equipment	33.4
Tradenames and other intangibles	376.9
Goodwill	345.4
Total Assets	825.7
Other current liabilities	(19.3)
Deferred income taxes	(154.1)
Purchase Price	652.3
Measurement Period Adjustments
Business Acquisition [Line Items]
Inventory	0.3
Accounts receivables, net	0
Other current assets	0
Property, plant and equipment	(1.8)
Tradenames and other intangibles	(14.7)
Goodwill	10.0
Total Assets	(6.2)
Other current liabilities	0
Deferred income taxes	6.2
Purchase Price	0
Adjusted Acquisition Date Preliminary Fair Value
Business Acquisition [Line Items]
Inventory	38.8
Accounts receivables, net	29.6
Other current assets	1.9
Property, plant and equipment	31.6
Tradenames and other intangibles	362.2
Goodwill	355.3
Total Assets	819.4
Other current liabilities	(19.3)
Deferred income taxes	(147.8)
Purchase Price	$ 652.3