Condensed Consolidated Statements of Comprehensive Earnings - Unaudited - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 29, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 7,863	$ 6,287
Other comprehensive income (loss):
Changes in fair market value of hedges, net of tax	294	(86)
Changes in unrealized pension cost, net of tax	908	1,257
Cumulative translation adjustment, net of tax	(409)	(1,103)
Other comprehensive income	793	68
Comprehensive income	$ 8,656	$ 6,355

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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