Accounts Receivable (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Jun. 30, 2022	Sep. 30, 2021
Accounts receivable, gross	$ 112,216	$ 65,404
Allowance for doubtful accounts	(1,189)	(364)
Accounts receivable, net	$ 111,027	$ 64,755
Concentration risk, number of customers	no	no
Industrial Software Business
Accounts receivable, net		$ 65,040
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer One [Member]
Percentage of total receivables	10.00%

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures).

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