Reportable Segment and Major Customers Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Customer	Mar. 31, 2013	Sep. 30, 2013
Diagnostics [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of customers			2
Amounts due from customers	15.00%		15.00%		17.00%
Percentage of segment's third party sales	35.00%	42.00%	36.00%	44.00%
Diagnostics [Member] | ITALY | Hospital Customers [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Amounts due from customers	13.00%		13.00%		13.00%
Account receivable	$ 3,500		$ 3,500		$ 3,500
Life Science [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of customers			2
Percentage of segment's third party sales	23.00%	18.00%	17.00%	18.00%