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Federal Home Loan Bank Advances and Long-Term Debt (Junior Subordinated Debt) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) trust | Dec. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |
Number of wholly owned subsidiaries that are statutory business trusts | trust | 6 |
Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Number of statutory business trusts formed for the purpose of issuing junior subordinated debt to third party investors | trust | 6 |
Aggregate Principal Amount of Trust Securities | $ 4,641 | $ 4,641
Aggregate Principal Amount of the Junior Subordinated Debts | $ 148,000 | 148,000
East West Capital Trust V | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.80% |
Current Rate | 1.96% |
Aggregate Principal Amount of Trust Securities | $ 464 | 464
Aggregate Principal Amount of the Junior Subordinated Debts | $ 15,000 | 15,000
East West Capital Trust VI | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.50% |
Current Rate | 1.70% |
Aggregate Principal Amount of Trust Securities | $ 619 | 619
Aggregate Principal Amount of the Junior Subordinated Debts | $ 20,000 | 20,000
East West Capital Trust VII | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.35% |
Current Rate | 1.55% |
Aggregate Principal Amount of Trust Securities | $ 928 | 928
Aggregate Principal Amount of the Junior Subordinated Debts | $ 30,000 | 30,000
East West Capital Trust VIII | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.40% |
Current Rate | 1.58% |
Aggregate Principal Amount of Trust Securities | $ 619 | 619
Aggregate Principal Amount of the Junior Subordinated Debts | $ 18,000 | 18,000
East West Capital Trust IX | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.90% |
Current Rate | 2.10% |
Aggregate Principal Amount of Trust Securities | $ 928 | 928
Aggregate Principal Amount of the Junior Subordinated Debts | $ 30,000 | 30,000
MCBI Statutory Trust I | Junior subordinated debt |  |
Debt Instrument [Line Items] |  |
Stated Interest Rate, basis spread (as a percent) | 1.55% |
Current Rate | 1.75% |
Aggregate Principal Amount of Trust Securities | $ 1,083 | 1,083
Aggregate Principal Amount of the Junior Subordinated Debts | $ 35,000 | $ 35,000

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