XML 95 R74.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Note 5 - Loans (Details) - Allowance for Loan Losses by Portfolio Segment - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | $ 161,420 |  |  |  | $ 161,420 | $ 173,889 |
Provision/(reversal) for possible loan losses | $ (3,000) | $ (1,250) | $ (2,150) | (5,000) | $ (2,000) | $ (5,100) | $ (3,700) | (11,400) | (11,172) | $ (3,000)
Charge-offs |  |  |  |  |  |  |  | (20,427) | (22,235) | (20,442)
Recoveries |  |  |  |  |  |  |  | 9,370 | 20,938 | 14,009
Net charge-offs |  |  |  |  |  |  |  | (11,057) | (1,297) |
Balance, ending | 138,963 |  |  |  | 161,420 |  |  | 138,963 | 161,420 | 173,889
Reserve to impaired loans | 7,749 |  |  |  | 11,798 |  |  | 7,749 | 11,798 |
Reserve to non-impaired loans | 131,214 |  |  |  | 149,622 |  |  | 131,214 | 149,622 |
Reserve for off-balance sheet credit commitments | 1,494 |  |  |  | 1,949 |  |  | 1,494 | 1,949 |
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | 47,501 |  |  |  | 47,501 | 65,103 |
Provision/(reversal) for possible loan losses |  |  |  |  |  |  |  | 20,505 | (22,244) |
Charge-offs |  |  |  |  |  |  |  | (16,426) | (7,875) |
Recoveries |  |  |  |  |  |  |  | 4,619 | 12,517 |
Net charge-offs |  |  |  |  |  |  |  | (11,807) | 4,642 |
Balance, ending | 56,199 |  |  |  | 47,501 |  |  | 56,199 | 47,501 | 65,103
Reserve to impaired loans | 530 |  |  |  | 1,263 |  |  | 530 | 1,263 |
Reserve to non-impaired loans | 55,669 |  |  |  | 46,238 |  |  | 55,669 | 46,238 |
Reserve for off-balance sheet credit commitments | 810 |  |  |  | 923 |  |  | 810 | 923 |
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | 27,652 |  |  |  | 27,652 | 11,999 |
Provision/(reversal) for possible loan losses |  |  |  |  |  |  |  | (5,684) | 19,853 |
Charge-offs |  |  |  |  |  |  |  |  | (6,747) |
Recoveries |  |  |  |  |  |  |  | 202 | 2,547 |
Net charge-offs |  |  |  |  |  |  |  | 202 | (4,200) |
Balance, ending | 22,170 |  |  |  | 27,652 |  |  | 22,170 | 27,652 | 11,999
Reserve to impaired loans |  |  |  |  | 1,077 |  |  |  | 1,077 |
Reserve to non-impaired loans | 22,170 |  |  |  | 26,575 |  |  | 22,170 | 26,575 |
Reserve for off-balance sheet credit commitments | 526 |  |  |  | 728 |  |  | 526 | 728 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | 74,673 |  |  |  | 74,673 | 84,753 |
Provision/(reversal) for possible loan losses |  |  |  |  |  |  |  | (26,035) | (8,197) |
Charge-offs |  |  |  |  |  |  |  | (3,716) | (7,458) |
Recoveries |  |  |  |  |  |  |  | 4,518 | 5,575 |
Net charge-offs |  |  |  |  |  |  |  | 802 | (1,883) |
Balance, ending | 49,440 |  |  |  | 74,673 |  |  | 49,440 | 74,673 | 84,753
Reserve to impaired loans | 6,792 |  |  |  | 8,993 |  |  | 6,792 | 8,993 |
Reserve to non-impaired loans | 42,648 |  |  |  | 65,680 |  |  | 42,648 | 65,680 |
Reserve for off-balance sheet credit commitments | 158 |  |  |  | 259 |  |  | 158 | 259 |
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | 11,578 |  |  |  | 11,578 | 12,005 |
Provision/(reversal) for possible loan losses |  |  |  |  |  |  |  | (179) | (558) |
Charge-offs |  |  |  |  |  |  |  | (285) | (155) |
Recoveries |  |  |  |  |  |  |  | 31 | 286 |
Net charge-offs |  |  |  |  |  |  |  | (254) | 131 |
Balance, ending | 11,145 |  |  |  | 11,578 |  |  | 11,145 | 11,578 | 12,005
Reserve to impaired loans | 427 |  |  |  | 465 |  |  | 427 | 465 |
Reserve to non-impaired loans | 10,718 |  |  |  | 11,113 |  |  | 10,718 | 11,113 |
Reserve for off-balance sheet credit commitments |  |  |  |  | 39 |  |  |  | 39 |
Consumer Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |  |  |  |  |  |
Balance, beginning |  |  |  | $ 16 |  |  |  | 16 | 29 |
Provision/(reversal) for possible loan losses |  |  |  |  |  |  |  | (7) | (26) |
Recoveries |  |  |  |  |  |  |  |  | 13 |
Net charge-offs |  |  |  |  |  |  |  |  | 13 |
Balance, ending | 9 |  |  |  | 16 |  |  | 9 | 16 | $ 29
Reserve to impaired loans |  |  |  |  | 0 |  |  |  | 0 |
Reserve to non-impaired loans | $ 9 |  |  |  | $ 16 |  |  | $ 9 | $ 16 |

X
- Definition Amount of direct write-downs of financing receivables charged against the allowance net of recoveries. + References No definition available. + Details
Name: | caty_FinancingReceivableAllowanceForCreditLossesNetChargeOffs
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of provision (reversal) related to loan transactions based on the assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References No definition available. + Details
Name: | caty_ProvisionReversalForPossibleLoanLosses
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The reserve for off-balance sheet credit commitments. + References No definition available. + Details
Name: | caty_ReserveForOffBalanceSheetCreditCommitments
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The reserve for impaired loans. + References No definition available. + Details
Name: | caty_ReserveToImpairedLoans
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The reserve for non-impaired loans. + References No definition available. + Details
Name: | caty_ReserveToNonImpairedLoans
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=caty_RealEstateConstructionPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=caty_ResidentialMortgageAndEquityLinesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |