Business Combination - Additional Information (Detail) (USD $) In Millions, unless otherwise specified		1 Months Ended
	Mar. 04, 2011	Oct. 03, 2011 Calypso Medical Technologies, Inc.	Apr. 03, 2012 InfiMed, Inc.
Business Acquisition [Line Items]
Total purchase price	$ 8.0	$ 15.8	$ 20.8
Cash consideration	7.5	10.9	17.1
Contingent consideration at fair value	0.5	4.9	3.7
Goodwill acquired	3.4		10.9
Allocated to amortizable intangible assets	5.7	7.9	5.4
Net assets acquired	(1.1)	7.9	4.5
Opening balances adjustment to deferred tax asset		2.5
Opening balances adjustment to goodwill		$ (2.5)