Derivative Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Outstanding Foreign Currency Forward Contracts

The following tables summarize our outstanding foreign currency forward contracts, by currency, at March 31, 2023 and September 30, 2022:

	March 31, 2023
	Contract Amount				Fair Value
	Foreign Currency		USD		USD
	(In thousands)
Sell foreign currency:
Euro (EUR)	EUR	11,500	$	12,519	$	—
Buy foreign currency:
British pound (GBP)	GBP	8,245	$	10,200	$	—
Singapore dollar (SGD)	SGD	6,247	$	4,700	$	—

	September 30, 2022
	Contract Amount				Fair Value
	Foreign Currency		USD		USD
	(In thousands)
Sell foreign currency:
Euro (EUR)	EUR	13,500	$	13,158	$	—
Buy foreign currency:
British pound (GBP)	GBP	11,848	$	13,100	$	—
Singapore dollar (SGD)	SGD	6,169	$	4,300	$	—

Losses on Derivative Financial Instruments

on derivative financial instruments were recorded in our condensed consolidated statements of income and comprehensive income as a component of other income (expense), net, and consisted of the following: 

	Quarter Ended March 31,				Six Months Ended March 31,
	2023		2022		2023		2022
	(In thousands)
Gains (losses) on foreign currency forward contracts	$	309	$	(576)	$	1,613	$	(14)