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Business Combinations - Schedule of Activity of Purchased Credit Deteriorated and Purchased Seasoned Loans (Details) - Flushing Financial Corporation $ in Thousands	Jun. 01, 2026 USD ($)
PSL
Par value of loans at acquisition	$ 4,416,746
Initial allowance for credit losses on acquired loans	(60,881)
Non-credit discount on acquired loans	(60,897)
Fair value of acquired loans	4,294,968
PCD
Par value of loans at acquisition	812,205
Initial allowance for credit losses on acquired loans	(60,450)
Non-credit discount on acquired loans	(55,466)
Fair value of acquired loans	$ 696,289

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- Definition

Financing Receivable, Purchased, Excluding Credit Deterioration, Amount At Purchase Price

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Financing Receivable, Purchased Seasonsed Loans, Allowance For Credit Loss At Acquisition Date

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- Definition

Financing Receivable, Purchased Seasonsed Loans, Amount At Purchase Price

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- Definition

Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 19
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-19

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 19
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-19

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Amount at purchase price of financing receivable purchased with credit deterioration.

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-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 19
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-19

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- Definition

Amount of discount (premium) attributable to other factors on financing receivable purchased with credit deterioration.

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-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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