Bank segment (HEI only) Loan Modifications (Details) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) contract	Dec. 31, 2014 USD ($) contract	Dec. 31, 2013
Loan modifications determined to be troubled debt restructurings
Commitments to Borrowers whose Loan Terms are Impaired or Modified under Troubled Debt Restructuring	$ 100
Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	68	71
Pre-modification outstanding recorded investment	$ 10,020	$ 19,313
Post-modification outstanding recorded investment	10,094	19,370
Net increase in ALLL	$ 943	$ 460
Minimum period of payment default of loans determined to be TDRs	90 days	90 days	90 days
Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	2	2
Recorded investment	$ 1,062	$ 404
Residential 1-4 family \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	19	38
Pre-modification outstanding recorded investment	$ 3,594	$ 10,680
Post-modification outstanding recorded investment	3,668	10,737
Net increase in ALLL	$ 87	$ 163
Residential 1-4 family \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	1
Recorded investment	$ 0	$ 390
Commercial real estate \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	1	0
Pre-modification outstanding recorded investment	$ 1,500	$ 0
Post-modification outstanding recorded investment	1,500	0
Net increase in ALLL	$ 0	$ 0
Commercial real estate \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Recorded investment	$ 0	$ 0
Home equity line of credit \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	39	8
Pre-modification outstanding recorded investment	$ 2,441	$ 502
Post-modification outstanding recorded investment	2,441	502
Net increase in ALLL	$ 370	$ 42
Home equity line of credit \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	1	0
Recorded investment	$ 6	$ 0
Residential land \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	1	18
Pre-modification outstanding recorded investment	$ 218	$ 4,304
Post-modification outstanding recorded investment	218	4,304
Net increase in ALLL	$ 0	$ 242
Residential land \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Recorded investment	$ 0	$ 0
Commercial construction \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Pre-modification outstanding recorded investment	$ 0	$ 0
Post-modification outstanding recorded investment	0	0
Net increase in ALLL	$ 0	$ 0
Commercial construction \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Recorded investment	$ 0	$ 0
Residential construction \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Pre-modification outstanding recorded investment	$ 0	$ 0
Post-modification outstanding recorded investment	0	0
Net increase in ALLL	$ 0	$ 0
Residential construction \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Recorded investment	$ 0	$ 0
Commercial loans \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	8	7
Pre-modification outstanding recorded investment	$ 2,267	$ 3,827
Post-modification outstanding recorded investment	2,267	3,827
Net increase in ALLL	$ 486	$ 13
Commercial loans \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	1	1
Recorded investment	$ 1,056	$ 14
Consumer loans \| Troubled debt restructurings real estate loans
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Pre-modification outstanding recorded investment	$ 0	$ 0
Post-modification outstanding recorded investment	0	0
Net increase in ALLL	$ 0	$ 0
Consumer loans \| Troubled debt restructurings that subsequently defaulted
Loan modifications determined to be troubled debt restructurings
Number of contracts \| contract	0	0
Recorded investment	$ 0	$ 0

Represents the commitments to borrowers whose loan terms are impaired or modified under troubled debt restructuring.

No definition available.

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- Definition

Represents the minimum period of payment default of loans determined to be troubled debt restructurings.

+ References

No definition available.

+ Details

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- Definition

The number of contracts under financing receivables that have been modified by troubled debt restructurings during the period.

+ References

No definition available.

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- Definition

The amount of the outstanding recorded investment in financial receivables after the financial receivables being modified as troubled debt restructurings.

+ References

No definition available.

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The amount of the outstanding recorded investment in financial receivables prior to the financial receivables being modified as troubled debt restructurings.

+ References

No definition available.

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- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 7
-Subparagraph d
-Article 9

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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.

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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