Cash, Cash Equivalents and Marketable Securities Available for Sale (Tables)

12 Months Ended

Sep. 30, 2019

Cash and Cash Equivalents [Abstract]

Summary of Cash, Cash Equivalents and Marketable Securities Available for Sale

The following is a summary of cash, cash equivalents and marketable securities at September 30, 2019 and 2018: 

	September 30, 2019				September 30, 2018
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(In thousands)
Cash and Cash Equivalents:
Cash	$	77,525	$	77,525	$	71,610	$	71,610
Money market funds	22,102		22,102		13,813		13,813
Bank time deposits	6,799		6,799		4,600		4,600
Total	$	106,426	$	106,426	$	90,023	$	90,023
Long-term Marketable Securities:
Marketable securities	$	17,193	$	20,222	$	14,313	$	18,059