Bank segment (HEI only) Allowance For Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	$ 40,116	$ 41,985	$ 37,906
Charge-offs	(5,550)	(8,202)
Recoveries	4,926	4,826
Provision	6,126	1,507
Valuation allowance, balance at the end of the period	45,618	40,116	37,906
Ending balance: individually evaluated for impairment	4,665	5,338
Ending balance: collectively evaluated for impairment	40,953	34,778
Financing Receivables:
Total financing receivables	4,440,989us-gaap_NotesReceivableNet	4,158,953us-gaap_NotesReceivableNet
Ending balance: individually evaluated for impairment	49,846	57,921
Ending balance: collectively evaluated for impairment	4,391,143	4,101,032
Residential 1-4 family
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	5,534	6,068
Charge-offs	(987)	(1,162)
Recoveries	1,180	1,881
Provision	(1,065)	(1,253)
Valuation allowance, balance at the end of the period	4,662	5,534
Ending balance: individually evaluated for impairment	951	642
Ending balance: collectively evaluated for impairment	3,711	4,892
Financing Receivables:
Total financing receivables	2,044,205	2,006,007
Ending balance: individually evaluated for impairment	22,981	20,317
Ending balance: collectively evaluated for impairment	2,021,224	1,985,690
Commercial real estate
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	5,059	2,965
Provision	3,895	2,094
Valuation allowance, balance at the end of the period	8,954	5,059
Ending balance: individually evaluated for impairment	1,845	1,118
Ending balance: collectively evaluated for impairment	7,109	3,941
Financing Receivables:
Total financing receivables	531,917	440,443
Ending balance: individually evaluated for impairment	5,112	4,604
Ending balance: collectively evaluated for impairment	526,805	435,839
Home equity line of credit
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	5,229	4,493
Charge-offs	(196)	(782)
Recoveries	752	358
Provision	1,197	1,160
Valuation allowance, balance at the end of the period	6,982	5,229
Ending balance: individually evaluated for impairment	46
Ending balance: collectively evaluated for impairment	6,936	5,229
Financing Receivables:
Total financing receivables	818,815	739,331
Ending balance: individually evaluated for impairment	779	1,179
Ending balance: collectively evaluated for impairment	818,036	738,152
Residential land
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	1,817	4,275
Charge-offs	(81)	(485)
Recoveries	469	868
Provision	(330)	(2,841)
Valuation allowance, balance at the end of the period	1,875	1,817
Ending balance: individually evaluated for impairment	1,057	1,332
Ending balance: collectively evaluated for impairment	818	485
Financing Receivables:
Total financing receivables	16,240	16,176
Ending balance: individually evaluated for impairment	7,850	10,577
Ending balance: collectively evaluated for impairment	8,390	5,599
Commercial construction
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	2,397	2,023
Provision	3,074	374
Valuation allowance, balance at the end of the period	5,471	2,397
Ending balance: collectively evaluated for impairment	5,471	2,397
Financing Receivables:
Total financing receivables	96,438	52,112
Ending balance: collectively evaluated for impairment	96,438	52,112
Residential construction
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	19	9
Provision	9	10
Valuation allowance, balance at the end of the period	28	19
Ending balance: collectively evaluated for impairment	28	19
Financing Receivables:
Total financing receivables	18,961	12,774
Ending balance: collectively evaluated for impairment	18,961	12,774
Commercial loans
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	15,803	15,931
Charge-offs	(1,872)	(3,056)
Recoveries	1,636	1,089
Provision	(1,550)	1,839
Valuation allowance, balance at the end of the period	14,017	15,803
Ending balance: individually evaluated for impairment	760	2,246
Ending balance: collectively evaluated for impairment	13,257	13,557
Financing Receivables:
Total financing receivables	791,757	783,388
Ending balance: individually evaluated for impairment	13,108	21,225
Ending balance: collectively evaluated for impairment	778,649	762,163
Consumer loans
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	2,367	4,019
Charge-offs	(2,414)	(2,717)
Recoveries	889	630
Provision	2,787	435
Valuation allowance, balance at the end of the period	3,629	2,367
Ending balance: individually evaluated for impairment	6
Ending balance: collectively evaluated for impairment	3,623	2,367
Financing Receivables:
Total financing receivables	122,656	108,722
Ending balance: individually evaluated for impairment	16	19
Ending balance: collectively evaluated for impairment	122,640	108,703
Unallocated
Allowance for loan losses:
Valuation allowance, balance at the beginning of the period	1,891	2,202
Provision	(1,891)	(311)
Valuation allowance, balance at the end of the period	0	1,891
Ending balance: collectively evaluated for impairment	$ 0	$ 1,891

A valuation allowance for financing receivables that are expected to be uncollectible.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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