Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 85,510	$ 60,732
Components of other comprehensive income (loss)
Cumulative translation adjustment	8,746	6,318
Pension and postretirement medical liability adjustment	1,826	2,000
Income taxes - pension and postretirement medical liability adjustment	(401)	(766)
Other comprehensive income	10,171	7,552
Comprehensive Income	$ 95,681	$ 68,284

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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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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