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Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets and Liabilities

Table 8.1: Fair Value Measurements
			As of March 31, 2025
			Level 1						Level 2						Level 3						Balance
			(in thousands)
Assets:
Deferred compensation assets - Rabbi Trust			$	34,339					$	—					$	—					$	34,339
Interest rate swap - $450 million notional value			—						10,190						—						10,190
Total assets			$	34,339					$	10,190					$	—					$	44,529
Liabilities:
Interest rate swap - $200 million notional value			$	—					$	1,144					$	—					$	1,144
Indemnification liabilities			—						—						10,601						10,601
Total liabilities			$	—					$	1,144					$	10,601					$	11,745

Schedule of Accumulated Other Comprehensive Income (Loss)

Table 8.2: Details of Changes in Accumulated Other Comprehensive Loss by Category
			Foreign currency translation adjustment						Net unrealized gain on derivatives, net of tax						Total
			(in thousands)
Balance as of September 30, 2024			$	(39,225)					$	6,765					$	(32,460)
Other comprehensive income before reclassifications			(7,089)						4,360						(2,729)
Amounts reclassified from accumulated other comprehensive loss			21,272						(4,458)						16,814
Net current period other comprehensive income/(loss)			14,183						(98)						14,085
Balance as of March 31, 2025			$	(25,042)					$	6,667					$	(18,375)

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- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-1

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-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
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