Note 4 - Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2024

Table Text Block [Abstract]

Schedule of Net Periodic Pension Cost

We sponsor three defined benefit pension plans, two of which cover substantially all U.S. employees. Net periodic pension benefit for the plans consisted of the following for the three and six months ended June 30, 2024 and 2023 (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Service cost	$	915		$	949		$	1,830		$	1,898
Interest cost		2,075			1,993			4,151			3,986
Expected return on plan assets		(3,136	)		(3,107	)		(6,272	)		(6,214	)
Amortization of prior service cost		66			125			132			250
Amortization of net loss		16			(47	)		31			(94	)
Net periodic pension benefit	$	(64	)	$	(87	)	$	(128	)	$	(174	)