Revenue Recognition (Tables)

12 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Contract Assets and Contract Liabilities

The following table summarizes the balances of the Company's unbilled receivables (contract assets), which are reported in Other assets (current and noncurrent), and its customer advances (contract liabilities), which are reported in Accrued expenses and Other liabilities.     

	2022		2023
Unbilled receivables (contract assets)	$	1,390	1,453
Customer advances (contract liabilities)	(776)		(897)
Net contract assets	$	614	556