Goodwill and Intangible Assets - Changes in Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Goodwill [Roll Forward]
Goodwill, beginning	$ 187,005	$ 168,284
Goodwill reassigned in segment realignment		0
Goodwill attributable to preliminary purchase price adjustments and acquisition activity	105,238	18,721
Goodwill, ending	292,243	187,005
Merchant Services
Goodwill [Roll Forward]
Goodwill, beginning	115,982	117,334
Goodwill reassigned in segment realignment		(419)
Goodwill attributable to preliminary purchase price adjustments and acquisition activity	3,104	(933)
Goodwill, ending	119,086	115,982
Proprietary Software and Payments
Goodwill [Roll Forward]
Goodwill, beginning	71,023	50,950
Goodwill reassigned in segment realignment		419
Goodwill attributable to preliminary purchase price adjustments and acquisition activity	102,134	19,654
Goodwill, ending	173,157	71,023
Other
Goodwill [Roll Forward]
Goodwill, beginning	0	0
Goodwill reassigned in segment realignment		0
Goodwill attributable to preliminary purchase price adjustments and acquisition activity	0	0
Goodwill, ending	$ 0	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of transfers into (out of) an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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