Credit Losses (Tables)

6 Months Ended

Mar. 31, 2021

Receivables [Abstract]

Summary of Change in Allowance for Credit Losses

The change in the allowance for credit losses for the six months ended March 31, 2021 is as follows (dollars in thousands):

	Allowance for Credit Losses
Balance as of September 30, 2020	$	(1,394	)
Current period recovery for expected credit losses		378
Write-offs charged against the allowance for expected credit losses		(118	)
Foreign exchange impact on ending balance		107
Balance as of March 31, 2021	$	(1,027	)