Restructuring (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Restructuring Reserve [Roll Forward]
Costs incurred	$ 3,067	$ 0	$ 0
A2iA
Restructuring Reserve [Roll Forward]
Balance at September 30, 2018	0
Costs incurred	3,067
Payments	(1,473)
Foreign currency effect on the restructuring accrual	(68)
Balance at September 30, 2019	$ 1,526	$ 0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

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