Segment and Geographic Information - Reconciliation of Reportable Segment Operating Income (Loss) to Corresponding Consolidated Amounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total revenue	$ 139,652	$ 118,142
Amortization of other intangible assets	8,000	8,900
Restructuring charges	173	(40)
Operating income (loss)	(325)	356
Interest income	35	76
Interest expense	(455)	(557)
Other income (expenses), net	(1,077)	1,281
(Loss) income before income taxes	(1,822)	1,156
Completed Technology
Segment Reporting Information [Line Items]
Amortization of other intangible assets	1,773	2,005
Acquired Intangible Assets
Segment Reporting Information [Line Items]
Amortization of other intangible assets	6,272	6,905
Life Sciences Products
Segment Reporting Information [Line Items]
Total revenue	49,877	45,508
Operating income (loss)	4,388	4,183
Life Sciences Services
Segment Reporting Information [Line Items]
Total revenue	89,775	72,634
Operating income (loss)	7,883	6,928
Operating Segments
Segment Reporting Information [Line Items]
Total revenue	139,652	118,142
Segment Reconciling Items
Segment Reporting Information [Line Items]
Operating income (loss)	12,271	11,112
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Other unallocated corporate expense (income)	$ 4,378	$ 1,885