Bank segment (HEI only) Credit Risk Profile Based on Aging Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Credit risk profile based on nonaccrual loans
Nonaccrual loans	$ 36,886	$ 48,521
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	24,107	19,040
Residential 1-4 family
Credit risk profile based on nonaccrual loans
Nonaccrual loans	19,253	19,679
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	13,525	9,744
Commercial real estate
Credit risk profile based on nonaccrual loans
Nonaccrual loans	5,112	4,439
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	0	0
Home equity line of credit
Credit risk profile based on nonaccrual loans
Nonaccrual loans	1,087	2,060
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	480	171
Residential land
Credit risk profile based on nonaccrual loans
Nonaccrual loans	720	3,161
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	7,130	7,476
Commercial construction
Credit risk profile based on nonaccrual loans
Nonaccrual loans	0	0
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	0	0
Residential construction
Credit risk profile based on nonaccrual loans
Nonaccrual loans	0	0
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	0	0
Commercial loans
Credit risk profile based on nonaccrual loans
Nonaccrual loans	10,053	18,781
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	2,972	1,649
Consumer loans
Credit risk profile based on nonaccrual loans
Nonaccrual loans	661	401
Accruing loans 90 days or more past due	0	0
Troubled debt restructured loans not included above	$ 0	$ 0

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

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- Definition

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+ References

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