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v3.19.3

Organization and Operations (Details) - USD ($) $ / shares in Units, $ in Thousands | Jun. 10, 2019 | Jun. 25, 2018 | Sep. 30, 2019 | Sep. 30, 2018
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IPO |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shares issued (shares) |  | 7,647,500 |  |
Public offering price (in USD per share) |  | $ 13.00 |  |
Net proceeds from public offering |  | $ 92,500 |  |
i3Verticals, LLC |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Non-controlling interest, ownership interest (percent) |  |  | 52.80% | 34.60%
i3Verticals, LLC |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Net proceeds from public offering | $ 20,870 |  |  |
Common units, purchased (in units) | 1,000,000 |  |  |
Continuing Equity Owner |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shareholders ownership interest (percent) |  |  |  | 48.20%
Common units, purchased (in units) | 4,165,527 |  |  |
Class B Common Stock | Continuing Equity Owner |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shareholders ownership interest (percent) |  |  |  | 47.20%
Class A Common Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shares issued (shares) | 5,165,527 |  |  |
Public offering price (in USD per share) | $ 22.75 |  |  |
Net proceeds from public offering | $ 111,640 |  |  |
Underwriters exercised option to purchase additional shares (in shares) | 673,764 |  |  |
Class A Common Stock | Continuing Equity Owner |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shareholders ownership interest (percent) |  |  |  | 1.00%

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