Note 15 - Financial Derivatives (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

	June 30, 2023			December 31, 2022
	(In thousands)
Fair value swap hedges:
Notional	$	758,655		$	874,034
Weighted average fixed rate-pay		1.82	%		2.12	%
Weighted average variable rate spread		0.38	%		0.68	%
Weighted average variable rate-receive		5.19	%		2.61	%
Unrealized gain	$	31,954		$	38,589

	Three months ended				Six months ended
	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Periodic net settlement of swaps (1)	$	7,070	$	484	$	13,406	$	1,172

Derivatives Not Designated as Hedging Instruments [Table Text Block]

Derivative financial instruments not designated as hedging instruments:	June 30, 2023			December 31, 2022
	(In thousands)
Notional amounts:
Forward, and swap contracts with positive fair value	$	890,093		$	72,996
Forward, and swap contracts with negative fair value	$	689,593		$	170,213
Fair value:
Forward, and swap contracts with positive fair value	$	50,663		$	448
Forward, and swap contracts with negative fair value	$	(50,647	)	$	(942	)