Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements of Comprehensive Earnings
Net earnings	$ 34,380	$ 6,954	$ 26,522
Other comprehensive earnings (loss):
Changes in fair market value of hedges, net of tax	553	157	(40)
Changes in unrealized pension cost, net of tax	6,412	6,809	(21,062)
Cumulative translation adjustment, net of tax	(1,154)	(1,738)	(1,234)
Other comprehensive earnings (loss)	5,811	5,228	(22,336)
Comprehensive earnings	$ 40,191	$ 12,182	$ 4,186

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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