Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

The following table represents financial assets that we measured at fair value on a recurring basis at September 30, 2018 and 2017:

September 30, 2018	Active Markets for Identical Instruments (Level 1)		Fair Value as of September 30, 2018
	(In thousands)
Assets:
Cash equivalents (1)	$	18,413	$	18,413
Marketable securities (2)	18,059		18,059
Total	$	36,472	$	36,472

September 30, 2017	Active Markets for Identical Instruments (Level 1)		Fair Value as of September 30, 2017
	(In thousands)
Assets:
Cash equivalents (1)	$	15,295	$	15,295
Marketable securities (2)	13,791		13,791
Total	$	29,086	$	29,086

(1) Included in cash and cash equivalents on our balance sheet at September 30, 2018 and 2017. Not included in this table are cash deposits of $71.6 million and $90.3 million at September 30, 2018 and 2017, respectively.

(2) 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 long-term marketable securities on our consolidated balance sheets at September 30, 2018 and 2017.