Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

Our significant financial assets and liabilities measured at fair value on a recurring basis as of March 31, 2026 and September 30, 2025 were as follows:

(in thousands)	March 31, 2026
	Level 1		Level 2		Level 3		Total
Financial assets:
Cash equivalents(1)	$	268,635	$	—	$	—	$	268,635
Forward contracts		—		735		—		735
Option contracts		—		6,882		—		6,882
	$	268,635	$	7,617	$	—	$	276,252
Financial liabilities:
Forward contracts		—		5,274		—		5,274
	$	—	$	5,274	$	—	$	5,274

(in thousands)	September 30, 2025
	Level 1		Level 2		Level 3		Total
Financial assets:
Cash equivalents(1)	$	38,031	$	—	$	—	$	38,031
Forward contracts		—		6,007		—		6,007
Option contracts		—		6,228		—		6,228
	$	38,031	$	12,235	$	—	$	50,266
Financial liabilities:
Forward contracts		—		4,773		—		4,773
	$	—	$	4,773	$	—	$	4,773

(1)Money market funds and time deposits.