Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 60,532	$ 59,575	$ (41,866)
Other comprehensive earnings (loss):
Changes in fair market value of derivatives, net of tax	(505)	3,499	311
Changes in unrealized pension cost, net of tax	120	1,203	91,081
Cumulative translation adjustment, net of tax	5,320	(848)	4
Other comprehensive earnings	4,935	3,854	91,396
Comprehensive earnings	$ 65,467	$ 63,429	$ 49,530