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Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Assets:
Interest rate swap contract	$ 150
Liabilities:
Contingent consideration liabilities	12,364	$ 2,960
Level 2 [Member]
Assets:
Interest rate swap contract	150
Level 3 [Member]
Liabilities:
Contingent consideration liabilities	$ 12,364	$ 2,960

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Fair value of financial and nonfinancial obligations.

+ References

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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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