Accounts Receivable (Tables)

12 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Schedule of accounts receivable

Accounts receivable are summarized as follows:

	September 30, 2020			September 30, 2019
Accounts Receivable	$	264,536		$	262,491
Allowance for Doubtful Accounts	(4,057		)	(4,906		)
Receivables, net	$	260,479		$	257,585

The movement in the allowance for doubtful accounts was as follows:

	Year Ended September 30,
	2020			2019			2018
Balance at beginning of period	$	(4,906	)	$	(4,199	)	$	(3,494	)
Charged to costs and expenses	(537		)	(788		)	(1,832		)
Write-offs	1,277			39			1,387
Foreign currency and other	109			42			(260		)
Balance at end of period	$	(4,057	)	$	(4,906	)	$	(4,199	)