Non-Controlling Interest - Narrative (Details) - i3Verticals, LLC - shares	Sep. 30, 2020	Sep. 30, 2019
Noncontrolling Interest [Line Items]
Non-controlling interest, common units (shares)	18,864,143	14,444,115
Non-controlling interest, ownership interest (percent)	61.30%	52.80%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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