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

12 Months Ended

Sep. 30, 2020

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, 2020 and 2019: 

	September 30, 2020				September 30, 2019
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(In thousands)
Cash and Cash Equivalents:
Cash	$	122,119	$	122,119	$	77,525	$	77,525
Money market funds	35,275		35,275		22,102		22,102
Bank time deposits	—		—		6,799		6,799
Total	$	157,394	$	157,394	$	106,426	$	106,426
Long-term Marketable Securities:
Marketable securities	$	20,195	$	25,513	$	17,193	$	20,222