Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2025

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 December 31, 2025 and September 30, 2025:

December 31, 2025	Active Markets for Identical Instruments (Level 1)		Fair Value as of December 31, 2025
	(In thousands)
Assets:
Marketable securities (1)	55,866		55,866
Total	$	55,866	$	55,866
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 supplemental retirement and savings plan for certain officers and senior management employees, which are distributed upon termination or retirement of the employees. Included in marketable securities on our condensed consolidated balance sheets at December 31, 2025 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.