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RELATED-PARTY TRANSACTIONS - LAFC Financing (Details) - USD ($) $ in Thousands |  |  | 12 Months Ended |  |
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Mar. 31, 2017 | Aug. 22, 2016 | Dec. 31, 2032 | Dec. 31, 2031 | Dec. 31, 2030 | Dec. 31, 2029 | Dec. 31, 2028 | Dec. 31, 2027 | Dec. 31, 2026 | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Nov. 24, 2017 | Aug. 08, 2016
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,292,903 | $ 9,142,150 |  |
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of naming and sponsorship agreement |  | 15 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 years |  |  |
Renewal term of the naming and sponsorship agreement |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Future annual payments for naming rights, revenue rights and other sponsorship rights | $ 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  |
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights | Scenario, Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Future annual payments for naming rights, revenue rights and other sponsorship rights |  |  | $ 6,700 | $ 6,600 | $ 6,500 | $ 6,400 | $ 6,300 | $ 6,200 | $ 6,100 | $ 6,000 | $ 5,900 | $ 5,800 | $ 5,700 | $ 5,600 | $ 5,500 | $ 5,400 | $ 5,300 |  |  |  |
Stadco Loan | Immediate Family Member of Chief Executive Officer, Brother | Los Angeles Football Club (LAFC) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Committed line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40,300
Committed line of credit, maximum borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 145,000
Outstanding advances |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23,300 | 0 |  |
Largest amount of principal outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23,500 | 0 |  |
Unused loan fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 295 | 59 |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 325 | 0 |  |
Team Loan | Immediate Family Member of Chief Executive Officer, Brother | Los Angeles Football Club (LAFC) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Committed line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,700
Committed line of credit, maximum borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 35,000
Outstanding advances |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,400 | 0 |  |
Largest amount of principal outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,500 | 0 |  |
Unused loan fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 140 | 18 |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 83 | 0 |  |
Various Entities Affiliated With LAFC | Affiliated Entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33,100 | $ 76,000 |  |
Standby Letters of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |
Los Angeles Football Club (LAFC) | Corporate Credit Card | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of available line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |

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