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RELATED-PARTY TRANSACTIONS - LAFC Financing (Details) - USD ($) $ in Thousands			12 Months Ended																28 Months Ended
	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, 2018	Nov. 24, 2017	Aug. 08, 2016
Related Party Transaction [Line Items]
Deposits																	$ 7,916,644	$ 7,292,903	$ 7,916,644
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights
Related Party Transaction [Line Items]
Prepaid recognized as prepaid asset																	$ 8,700		8,700
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																$ 5,300		15,300
Maximum commitment																	100,000		100,000
Expenses from transactions with related parties																	6,700
Los Angeles Football Club (LAFC) Naming Rights, Revenue Rights, And Other Sponsorship Rights | Expected
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
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																	0	23,300	0
Largest amount of principal outstanding																	33,800	23,500
Unused loan fees																	66	295
Interest income																	1,100	325
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																	0	5,400	0
Largest amount of principal outstanding																	9,700	5,500
Unused loan fees																	22	140
Interest income																	471	83
Various Entities Affiliated With LAFC | Affiliated Entity
Related Party Transaction [Line Items]
Deposits																	19,400	$ 33,100	19,400
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		$ 100

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