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Nature of Operations and Summary of Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Accounting Policies [Abstract]
Cash Paid for Interest	$ 892	$ 2,212
Cash Paid for Income Taxes, Net of Refunds	5,344	4,698
Non-Cash Investing Activities:
Non-cash additions to property, plant, and equipment	169	128
Non-Cash Financing Activities:
Issuance of Company common stock upon vesting of restricted stock units	3,203	3,670
Dividends declared but unpaid	$ 2,894	$ 2,753

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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