Condensed Consolidated Cash Flow Statements (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020
Cash flows from operating activities:
Net income (loss)	$ 28,741	$ (11,219)
Adjustments to reconcile net income (loss) to net cash used for operating activities:
Depreciation and amortization	22,196	26,798
Share-based compensation	7,285	3,708
Asset impairment charges	6,995	23,197
Changes in operating assets and liabilities, net of the effects of currency exchange rate changes, acquired businesses and disposals:
Receivables	(50,208)	43,627
Inventories	(19,313)	(29,054)
Accounts payable	3,269	(50,827)
Accrued liabilities	(30,765)	(38,425)
Income taxes	1,416	(16,500)
Other assets	(4,226)	6,144
Other liabilities	(6,885)	(9,501)
Net cash used for operating activities	(41,495)	(52,052)
Cash flows from investing activities:
Cash from (used for) business acquisitions, net of cash acquired	(72,232)	590
Capital expenditures	(11,223)	(20,935)
Proceeds from disposal of tangible assets	12	2,090
Proceeds from disposal of business, net of cash sold	1,106	0
Net cash used for investing activities	(82,337)	(18,255)
Cash flows from financing activities:
Cash dividends paid	(2,246)	(2,296)
Payments under borrowing arrangements	(1,841)	0
Withholding tax payments for share-based payment awards	(905)	(1,003)
Other	(43)	(58)
Payments under share repurchase program	0	(21,239)
Payment of earnout consideration	0	(29,300)
Net cash used for financing activities	(5,035)	(53,896)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(2,277)	(7,947)
Decrease in cash and cash equivalents	(131,144)	(132,150)
Cash and cash equivalents, beginning of period	501,994	425,885
Cash and cash equivalents, end of period	$ 370,850	$ 293,735