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Nature of Operations and Summary of Significant Accounting Policies - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
Accounting Policies [Abstract]
Cash Paid for Interest	$ 1,968	$ 4,186
Cash Paid for Income Taxes, Net of Refunds	12,475	7,036
Non-Cash Investing Activities:
Fair value of assets acquired	197	9,164
Cash paid for acquired businesses	(159)	(7,537)
Liabilities Assumed of Acquired Businesses	38	1,627
Purchases of property, plant, and equipment in accounts payable	169	150
Non-Cash Financing Activities:
Issuance of Company common stock upon vesting of restricted stock units	3,628	4,027
Dividends declared but unpaid	$ 2,895	$ 2,760

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

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