Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Schedule of Financial Assets Measured at Fair Value on a Recurring Basis

The following tables represent financial assets that we measured at fair value on a recurring basis at March 31, 2026 and September 30, 2025:

March 31, 2026	Active Markets for Identical Instruments (Level 1)		Fair Value as of March 31, 2026
	(In thousands)
Assets:
Marketable securities (1)	$	53,046	$	53,046
September 30, 2025	Active Markets for Identical Instruments (Level 1)		Fair Value as of September 30, 2025
	(In thousands)
Assets:
Cash equivalents (2)	$	6	$	6
Marketable securities (1)	54,625		54,625
Total	$	54,631	$	54,631

(1) Represents securities held under a non-qualified deferred compensation plan for certain officers and senior management employees, which are distributed upon separation from service or at a specific date while still employed. Included in marketable securities on our condensed consolidated balance sheets at March 31, 2026 and September 30, 2025.

(2) Included in cash and cash equivalents on our condensed consolidated balance sheet at September 30, 2025. Not included in this table are cash deposits of $134.1 million at September 30, 2025.