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Bank segment (HEI only) - Securities Sold Under Agreements to Repurchase (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Securities sold under agreements to repurchase
Repurchase liability	$ 0	$ 281,120
Weighted-average interest rate	0.00%	3.02%
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest
Securities sold under agreements to repurchase
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest	$ 0	$ 326,841
Overnight
Securities sold under agreements to repurchase
Repurchase liability	$ 0	$ 281,120
Weighted-average interest rate	0.00%	3.02%
Overnight | Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest
Securities sold under agreements to repurchase
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest	$ 0	$ 326,841
1 to 29 days
Securities sold under agreements to repurchase
Repurchase liability	$ 0	$ 0
Weighted-average interest rate	0.00%	0.00%
1 to 29 days | Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest
Securities sold under agreements to repurchase
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest	$ 0	$ 0
30 to 90 days
Securities sold under agreements to repurchase
Repurchase liability	$ 0	$ 0
Weighted-average interest rate	0.00%	0.00%
30 to 90 days | Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest
Securities sold under agreements to repurchase
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest	$ 0	$ 0
Over 90 days
Securities sold under agreements to repurchase
Repurchase liability	$ 0	$ 0
Weighted-average interest rate	0.00%	0.00%
Over 90 days | Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest
Securities sold under agreements to repurchase
Collateralized by mortgage-backed securities and federal agency obligations at fair value plus accrued interest	$ 0	$ 0

X

- Definition

Assets Sold Under Agreements To Repurchase Fair Value Plus Accrued Interest

+ References

No definition available.

+ Details

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- Definition

Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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- Definition

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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- Definition

Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(i))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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