Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (22.2)	$ 50.4	$ 126.4
Adjustments to reconcile net income (loss) to net cash provided by operating activities (excluding assets acquired, liabilities assumed and noncontrolling interests at acquisition):
Depreciation and amortization	37.6	38.4	34.1
Amortization of intangible assets	24.1	30.0	33.4
Stock-based compensation	12.1	19.1	15.8
Amortization of debt issuance costs	3.9	3.9	3.4
Gain on sale of property, plant and equipment	(0.9)	(0.2)	0.2
Change in the fair value of financial instruments	1.7	1.0	12.4
Deferred income taxes	(12.4)	(0.2)	(3.2)
Net loss on divestitures	0.0	77.4	0.0
Gain from insurance proceeds	0.0	0.0	(7.3)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	78.5	(15.7)	(53.0)
Inventories	80.8	(84.4)	(125.1)
Prepaid expenses and other current assets	12.5	(4.5)	(4.2)
Other non-current assets	0.0	(3.4)	(0.8)
Accounts payable	(61.5)	(68.4)	170.6
Accrued compensation and related benefits	(5.6)	7.1	1.8
Income taxes payable	(5.2)	(0.1)	7.7
Operating lease assets and liabilities	0.4	(2.2)	(1.1)
Other liabilities	(7.9)	(1.0)	0.5
Net cash provided by operating activities	135.9	47.2	211.6
Cash flows from investing activities:
Purchases of property, plant and equipment	(75.8)	(100.1)	(59.3)
Acquisition of businesses, net of cash acquired	(46.1)	0.0	(342.8)
Proceeds from sale of equipment, including insurance proceeds	2.2	0.5	7.7
Divestiture of subsidiaries	0.0	3.4	0.0
Settlement of forward contracts in conjunction with acquisition	0.0	0.0	(10.4)
Net cash used in investing activities	(119.7)	(96.2)	(404.8)
Cash flows from financing activities:
Principal payments on bank borrowings	(38.6)	(39.7)	(131.8)
Repurchase of shares	(29.4)	(12.1)	0.0
Employees’ taxes paid upon vesting of restricted stock units	(2.2)	(3.9)	(7.3)
Payments of debt issuance costs	(0.3)	(0.7)	(8.9)
Proceeds from issuance of common stock	0.8	0.7	193.6
Payments of dividends to a joint venture shareholder	(0.2)	(0.3)	0.0
Proceeds from bank borrowings	0.0	0.0	415.2
Net cash provided by (used in) financing activities	(69.9)	(56.0)	460.8
Effect of exchange rate changes on cash and cash equivalents	1.9	(2.7)	(1.4)
Net increase (decrease) in cash and cash equivalents	(51.8)	(107.7)	266.2
Cash and cash equivalents at beginning of period	358.8	466.5	200.3
Cash and cash equivalents at end of period	307.0	358.8	466.5
Supplemental cash flow information:
Income taxes paid, net of income tax refunds	31.2	36.8	23.1
Interest paid	44.8	31.9	19.9
Non-cash investing and financing activities:
Property, plant and equipment purchased included in accounts payable and other liabilities	9.7	16.8	14.8
Fair value of HIS earn-out at acquisition date	27.1	0.0	0.0
Reclassification of stock purchase commitment to noncontrolling interest	$ 0.0	$ 0.0	$ 16.5