Segment and Geographic Information - Financial Information for Business Segments - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Segment Reporting Information [Line Items]
Total assets	$ 1,854,937	$ 1,819,512
Operating Segments
Segment Reporting Information [Line Items]
Total assets	1,083,561	1,059,007
Operating Segments | Life Sciences Products
Segment Reporting Information [Line Items]
Total assets	285,958	278,769
Operating Segments | Life Sciences Services
Segment Reporting Information [Line Items]
Total assets	$ 797,603	$ 780,238