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Investments - Summary of Contingent Consideration Measured at Fair Value (Details) - Significant Unobservable Inputs (Level 3) - Contingent Consideration $ in Thousands	12 Months Ended
	Sep. 30, 2021 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 753
Contingent consideration associated with ID R&D Acquisition	15,690
Expenses recorded due to changes in fair value	1,080
Payment of contingent consideration associated with the ICAR acquisition	(782)
Foreign currency effect on contingent consideration	29
Ending Balance	$ 16,770

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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