Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Liabilities:
Contingent consideration			$ 2,600
Reported Value Measurement
Assets:
Investment in equity securities	$ 67	$ 128
Derivative and hedging instruments	532	1,560
Liabilities:
Contingent consideration	6,684	15,161
Derivative and hedging instruments	1,448	3,626
Level 1 \| Reported Value Measurement
Assets:
Investment in equity securities	67	128
Derivative and hedging instruments	0	0
Liabilities:
Contingent consideration	0	0
Derivative and hedging instruments	0	0
Level 2 \| Reported Value Measurement
Assets:
Investment in equity securities	0	0
Derivative and hedging instruments	532	1,560
Liabilities:
Contingent consideration	0	0
Derivative and hedging instruments	1,448	3,626
Level 3 \| Reported Value Measurement
Assets:
Investment in equity securities	0	0
Derivative and hedging instruments	0	0
Liabilities:
Contingent consideration	6,684	15,161
Derivative and hedging instruments	$ 0	$ 0

Amount of liability recognized arising from contingent consideration in a business combination.

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Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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