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Note 9 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

		At March 31, 2025
		Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3) (1)
		(In thousands)
Debt securities available for sale:
Agency residential MBS		$	204,342			$	-			$	204,342			$	-
Agency commercial MBS			46,502				-				46,502				-
Securities of U.S. Government sponsored entities			299,722				-				299,722				-
Obligations of states and political subdivisions			60,581				-				60,581				-
Corporate securities			1,802,791				-				1,802,791				-
Collateralized loan obligations			822,111				-				822,111				-
Total debt securities available for sale		$	3,236,049			$	-			$	3,236,049			$	-

		At December 31, 2024
		Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3) (1)
		(In thousands)
Debt securities available for sale:
Agency residential MBS		$	211,060			$	-			$	211,060			$	-
Agency commercial MBS			6,966				-				6,966				-
Securities of U.S. Government sponsored entities			292,117				-				292,117				-
U.S. Treasury securities			4,955				4,955				-				-
Obligations of states and political subdivisions			62,186				-				62,186				-
Corporate securities			1,835,937				-				1,835,937				-
Collateralized loan obligations			982,589				-				982,589				-
Total debt securities available for sale		$	3,395,810			$	4,955			$	3,390,855			$	-

Fair Value, by Balance Sheet Grouping [Table Text Block]

		At March 31, 2025
		Carrying Amount				Estimated Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2 )				Significant Unobservable Inputs (Level 3 )
Financial Assets:		(In thousands)
Cash and due from banks		$	727,336			$	727,336			$	727,336			$	-			$	-
Debt securities held to maturity			839,348				813,125				-				813,125				-
Loans			757,116				752,284				-				-				752,284
Financial Liabilities:
Deposits		$	4,874,095			$	4,871,639			$	-			$	4,795,708			$	75,931
Securities sold under repurchase agreements			113,219				113,219				-				113,219				-

		At December 31, 2024
		Carrying Amount				Estimated Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2 )				Significant Unobservable Inputs (Level 3 )
Financial Assets:		(In thousands)
Cash and due from banks		$	601,494			$	601,494			$	601,494			$	-			$	-
Debt securities held to maturity			844,634				807,838				-				807,838				-
Loans			805,520				795,849				-				-				795,849
Financial Liabilities:
Deposits		$	5,011,850			$	5,007,644			$	-			$	4,929,612			$	78,032
Securities sold under repurchase agreements			120,322				120,322				-				120,322				-

X

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-SubTopic 10
-Topic 825
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482881/825-10-55-10

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-13

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 825
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-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482881/825-10-55-12

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

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