The percentage points added to the reference rate to compute the variable rate on the trust preferred securities.

No definition available.

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Namespace Prefix:	cpf_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

The reference rate for the variable rate of the trust preferred securities, such as LIBOR or the US treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

Name:	cpf_TrustPreferredSecuritiesDescriptionOfVariableRateBasis
Namespace Prefix:	cpf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The value of trust preferred securities issued during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	cpf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Trust Preferred Securities Issued Value, Held By Company

+ References

No definition available.

+ Details

Name:	cpf_TrustPreferredSecuritiesIssuedValueHeldByCompany
Namespace Prefix:	cpf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ 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(a)(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

Reference 3: 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Period Type:	duration

- Details

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Namespace Prefix:
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- Details

Name:	dei_LegalEntityAxis=cpf_CPBCapitalTrustIIMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SubordinatedDebtMember
Namespace Prefix:
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SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands			1 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Jan. 07, 2019	Nov. 13, 2018	Oct. 31, 2003	Dec. 31, 2018	Dec. 31, 2017
Subsequent events
Long-term debt				$ 122,166	$ 92,785
Subsequent Event
Subsequent events
Trust preferred securities issued, held by company	$ 600
CPB Capital Trust II
Subsequent events
Trust preferred securities issued		$ 20,000	$ 20,000
Variable rate basis			three-month London Interbank Offered Rate ("LIBOR")
Basis spread			2.85%
CPB Capital Trust II \| Subsequent Event
Subsequent events
Trust preferred securities issued	$ 20,000
Variable rate basis	three-month LIBOR
Basis spread	2.85%
Subordinated debentures
Subsequent events
Long-term debt				72,166	$ 92,785
Subordinated debentures \| CPB Capital Trust II
Subsequent events
Long-term debt		$ 600		$ 20,600
Subordinated debentures \| CPB Capital Trust II \| Subsequent Event
Subsequent events
Long-term debt	$ 20,600