Goodwill - Schedule Of Carrying Amount of Goodwill by Segment (Detail) $ in Thousands	6 Months Ended
	Mar. 31, 2017 USD ($)
Goodwill [Line Items]
Balance as of September 30, 2016	$ 26,555
Translation adjustment	(610)
Balance as of March 31, 2017	25,945
In Vitro Diagnostics [Member]
Goodwill [Line Items]
Balance as of September 30, 2016	8,010
Balance as of March 31, 2017	8,010
Medical Device [Member]
Goodwill [Line Items]
Balance as of September 30, 2016	18,545
Translation adjustment	(610)
Balance as of March 31, 2017	$ 17,935