Bank segment (HEI only) Available For Sale Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014 issue	Dec. 31, 2013 issue
Available-for-sale securities
Total available-for-sale securities, amortized cost	$ 549,627	$ 535,090
Gross unrealized gains	6,745	6,911
Gross unrealized losses	(5,978)	(12,994)
Available-for-sale investment securities	550,394us-gaap_AvailableForSaleSecurities	529,007us-gaap_AvailableForSaleSecurities
Available-for-sale Securities, Continuous Unrealized Loss Position
Number of issues, less than 12 months	12	49
Fair value, less than 12 months	88,999	313,820
Gross unrealized losses, less than 12 months	(525)	(11,353)
Number of issues, more than 12 months	34	4
Fair value, 12 months or longer	201,791	19,655
Gross unrealized losses, 12 months or longer	(5,453)	(1,641)
U.S. Treasury and federal agency obligations
Available-for-sale securities
Total available-for-sale securities, amortized cost	119,507
Gross unrealized gains	1,092
Gross unrealized losses	(1,039)
Available-for-sale investment securities	119,560
Available-for-sale Securities, Continuous Unrealized Loss Position
Number of issues, less than 12 months	6
Fair value, less than 12 months	41,970
Gross unrealized losses, less than 12 months	(361)
Number of issues, more than 12 months	5
Fair value, 12 months or longer	29,168
Gross unrealized losses, 12 months or longer	(678)
Mortgage-related securities-FNMA, FHLMC and GNMA
Available-for-sale securities
Total available-for-sale securities, amortized cost	430,120	374,993
Gross unrealized gains	5,653	4,911
Gross unrealized losses	(4,939)	(10,460)
Available-for-sale investment securities	430,834	369,444
Available-for-sale Securities, Continuous Unrealized Loss Position
Number of issues, less than 12 months	6	36
Fair value, less than 12 months	47,029	228,543
Gross unrealized losses, less than 12 months	(164)	(8,819)
Number of issues, more than 12 months	29	4
Fair value, 12 months or longer	172,623	19,655
Gross unrealized losses, 12 months or longer	(4,775)	(1,641)
U.S. Treasury and federal agency obligations
Available-for-sale securities
Total available-for-sale securities, amortized cost		83,193
Gross unrealized gains		174
Gross unrealized losses		(2,394)
Available-for-sale investment securities		80,973
Available-for-sale Securities, Continuous Unrealized Loss Position
Number of issues, less than 12 months		10
Fair value, less than 12 months		70,799
Gross unrealized losses, less than 12 months		(2,394)
Number of issues, more than 12 months		0
Fair value, 12 months or longer		0
Gross unrealized losses, 12 months or longer		0
Municipal bonds
Available-for-sale securities
Total available-for-sale securities, amortized cost		76,904
Gross unrealized gains		1,826
Gross unrealized losses		(140)
Available-for-sale investment securities		78,590
Available-for-sale Securities, Continuous Unrealized Loss Position
Number of issues, less than 12 months		3
Fair value, less than 12 months		14,478
Gross unrealized losses, less than 12 months		(140)
Number of issues, more than 12 months		0
Fair value, 12 months or longer		0
Gross unrealized losses, 12 months or longer		$ 0

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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