Regulatory Capital - Schedule of Risk and Leverage-Based Capital Ratios and Amounts (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
SoFi Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 risk-based capital, amount	$ 3,331,616	$ 1,162,024
Tier 1 risk-based capital, amount	3,331,616	1,162,024
Total risk-based capital, amount	3,386,105	1,202,429
Tier 1 leverage, amount	3,331,616	1,162,024
Risk-weighted assets	19,244,841	7,972,956
Quarterly adjusted average assets	$ 22,273,285	$ 7,615,481
CET1 risk-based capital, ratio	0.173	0.146
Tier 1 risk-based capital, ratio	0.173	0.146
Total risk-based capital, ratio	0.176	0.151
Tier 1 leverage, ratio	0.150	0.153
CET1 risk-based capital, required minimum	0.070	0.070
Tier 1 risk-based capital, required minimum	0.085	0.085
Total risk-based capital, required minimum	0.105	0.105
Tier 1 leverage, required minimum	0.040	0.040
CET1 risk-based capital, well capitalized minimum	0.065	0.065
Tier 1 risk-based capital, well capitalized minimum	0.080	0.080
Total risk-based capital, well capitalized minimum	0.100	0.100
Tier 1 leverage, well capitalized minimum	0.050	0.050
SoFi Technologies
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 risk-based capital, amount	$ 3,439,969	$ 3,188,341
Tier 1 risk-based capital, amount	3,439,969	3,188,341
Total risk-based capital, amount	3,494,458	3,228,746
Tier 1 leverage, amount	3,439,969	3,188,341
Risk-weighted assets	22,883,185	15,695,217
Quarterly adjusted average assets	$ 26,782,318	$ 14,592,551
CET1 risk-based capital, ratio	0.150	0.203
Tier 1 risk-based capital, ratio	0.150	0.203
Total risk-based capital, ratio	0.153	0.206
Tier 1 leverage, ratio	0.128	0.218
CET1 risk-based capital, required minimum	0.070	0.070
Tier 1 risk-based capital, required minimum	0.085	0.085
Total risk-based capital, required minimum	0.105	0.105
Tier 1 leverage, required minimum	0.040	0.040