Fair Value Measures - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - Reported Value Measurement - USD ($) $ in Thousands	Jun. 30, 2024	Sep. 30, 2023
Assets:
Investment in Equity Securities	$ 153	$ 326
Liabilities:
Contingent Consideration	15,287	21,181
Level 1
Assets:
Investment in Equity Securities	153	326
Liabilities:
Contingent Consideration	0	0
Level 2
Assets:
Investment in Equity Securities	0	0
Liabilities:
Contingent Consideration	0	0
Level 3
Assets:
Investment in Equity Securities	0	0
Liabilities:
Contingent Consideration	$ 15,287	$ 21,181