Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements of Comprehensive Earnings
Net earnings	$ 46,532	$ 14,448	$ 34,380
Other comprehensive earnings (loss):
Changes in fair market value of hedges, net of tax	795	110	553
Changes in unrealized pension cost, net of tax	(1,830)	13,687	6,412
Cumulative translation adjustment, net of tax	(311)	437	(1,154)
Other comprehensive (loss) earnings	(1,346)	14,234	5,811
Comprehensive earnings	$ 45,186	$ 28,682	$ 40,191

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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