Debt - Narrative (Details) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($) loan	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Accrued interest payable	$ 1,972	$ 19,817
Warehouse Facilities \| Risk Retention Warehouse Facilities
Debt Instrument [Line Items]
Number of new loans opened \| loan	1
Warehouse Facilities \| Credit Card Warehouse Facilities
Debt Instrument [Line Items]
Number of new loans opened \| loan	1
Maximum available capacity	$ 100,000
Warehouse Facilities \| Personal Loan Warehouse Facilities
Debt Instrument [Line Items]
Maximum available capacity	$ 2,400,000
Number of loans closed \| loan	1
Value of loan facilities closed	$ 250,000
Warehouse Facilities \| Home Loan Warehouse Facilities
Debt Instrument [Line Items]
Number of new loans opened \| loan	1
Value of loan facilities closed	$ 150,000
Seller Note \| Revolving Credit Facility
Debt Instrument [Line Items]
Retirement of debt	269,864
Principal repayments	250,000
Payments for accrued interest	19,864
SoFi Funding PL XIII \| Warehouse Facilities \| Personal Loan Warehouse Facilities
Debt Instrument [Line Items]
Maximum available capacity	$ 300,000

Debt Instrument, Number Of Closed Warehouse Facilities

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- Definition

Debt Instrument, Number Of New Warehouse Facilities

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Maximum Borrowing Capacity Of Closed Warehouse Facilities

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Repayments Of Long-Term Debt, Principal Payments

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Aggregate amount of interest paid or due on all long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.8)
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1402
-Paragraph (a)

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1402
-Paragraph (b)
-Subparagraph (1)

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Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Balance Type:	credit
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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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