Business Combinations - Summary of Purchase Price (Detail) $ in Thousands, € in Millions				6 Months Ended
	Jan. 08, 2016 USD ($)	Nov. 20, 2015 USD ($)	Nov. 20, 2015 EUR (€)	Mar. 31, 2016 USD ($)	Mar. 31, 2016 EUR (€)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Contingent consideration				$ 13,646		$ 9,308
Creagh Medical Ltd [Member]
Business Acquisition [Line Items]
Cash Paid		$ 19,300	€ 18	18,417
Debt assumed				793
Contingent consideration				9,064	€ 12
Payments to acquire business				28,274
Less cash and cash equivalents acquired				(251)
Total purchase price, net of cash acquired				28,023
NorMedix, Inc. [Member]
Business Acquisition [Line Items]
Cash Paid	$ 7,000			7,000
Contingent consideration				3,740
Payments to acquire business	$ 14,000			10,740
Less cash and cash equivalents acquired				(17)
Total purchase price, net of cash acquired				$ 10,723