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Federal Home Loan Bank Advances and Long-Term Debt (Junior Subordinated Debt) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 USD ($) trust | Dec. 31, 2016 USD ($)
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.80% |
Current Rate | 3.25% |
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.50% |
Current Rate | 3.09% |
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.35% |
Current Rate | 2.94% |
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.40% |
Current Rate | 2.91% |
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.90% |
Current Rate | 3.49% |
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, base | 3-month Libor + |
Stated Interest Rate, basis spread (as a percent) | 1.55% |
Current Rate | 3.14% |
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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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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