Consolidated Statements Of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Dec. 28, 2019	Dec. 29, 2018
Consolidated Statements Of Changes In Shareholders' Equity [Abstract]
Common stock cash dividends per share	$ 0.22	$ 0.22	$ 0.22	$ 0.20	$ 0.20	$ 0.20
Pension liability adjustment - pre-tax	$ (118)			$ (100)			$ (353)	$ (302)

Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive (income) loss for defined benefit plan, attributable to parent entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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