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Earnout Unit, Threshold Trading Days

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Earnout Unit, Volume Weighted Average Price

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Finance receivables originated through the bank partnership arrangements.

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Finance receivables originated through the bank partnership arrangements percentage.

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Financing Receivable, Nonaccrual, Threshold Delinquency Period

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Percentage Of Earnout Voting Shares

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Reverse Recapitalization, Contingent Consideration, Equity, Shares

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Reverse Recapitalization, Ownership Interest Retained By Noncontrolling Owners

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Schedule Of Reverse Recapitalization [Line Items]

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements.

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Amount of expense for amortization of capitalized computer software costs.

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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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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Research and development expense during the period related to the costs of developing and achieving technological feasibility of a computer software product to be sold, leased, or otherwise marketed.

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Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)	Jan. 01, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jul. 20, 2021 day $ / shares shares
Accounting Policies [Abstract]
Number of reportable segments \| segment	1
Finance receivables originated through the bank partnership arrangements, percentage	94.00%	74.00%
Finance receivables originated through the bank partnership arrangements	$ 11,800			$ 9,500
Accrual period for financing receivables	60 days
Development and capitalized software costs	$ 3,800	$ 2,700
Capitalized software costs, amortization expense	3,000	$ 1,900
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right of use asset	15,114
Operating lease liability	17,631
Decrease in deferred rent	$ (4,184)			$ (4,672)
Class V Voting Stock
Schedule Of Reverse Recapitalization [Line Items]
Stock subject to restrictions (in shares) \| shares					25,500,000
Retained OppFi Units
Schedule Of Reverse Recapitalization [Line Items]
Stock subject to restrictions (in shares) \| shares					25,500,000
Retained OppFi Units \| Earnout Units, Option One
Schedule Of Reverse Recapitalization [Line Items]
Earnout unit, volume weighted average price (in dollars per share) \| $ / shares					$ 12.00
Earnout unit, threshold trading days \| day					20
Earnout unit, threshold consecutive trading days \| day					30
Retained OppFi Units \| Earnout Units, Option One \| Earnout Units, Tranche One
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option One \| Earnout Units, Tranche Two
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option One \| Earnout Units, Tranche Three
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Two
Schedule Of Reverse Recapitalization [Line Items]
Earnout unit, volume weighted average price (in dollars per share) \| $ / shares					$ 13.00
Earnout unit, threshold trading days \| day					20
Earnout unit, threshold consecutive trading days \| day					30
Retained OppFi Units \| Earnout Units, Option Two \| Earnout Units, Tranche One
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Two \| Earnout Units, Tranche Two
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Two \| Earnout Units, Tranche Three
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Three
Schedule Of Reverse Recapitalization [Line Items]
Earnout unit, volume weighted average price (in dollars per share) \| $ / shares					$ 14.00
Earnout unit, threshold trading days \| day					20
Earnout unit, threshold consecutive trading days \| day					30
Retained OppFi Units \| Earnout Units, Option Three \| Earnout Units, Tranche One
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Three \| Earnout Units, Tranche Two
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Retained OppFi Units \| Earnout Units, Option Three \| Earnout Units, Tranche Three
Schedule Of Reverse Recapitalization [Line Items]
Percentage of earnout voting shares					33.30%
Pro Forma
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right of use asset			$ 15,500
Operating lease liability			18,000
Pro Forma \| Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease in deferred rent			$ 2,500
Existing Equity Holders
Schedule Of Reverse Recapitalization [Line Items]
Ownership interest retained	87.80%			87.60%