Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Cash Flows from Operating Activities:
Net loss	$ (44.4)	$ (171.0)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:
Depreciation and amortization	246.6	239.6
Unrealized foreign exchange (gains) losses, net	(18.2)	51.1
Loss on extinguishment of debt	50.3	12.6
Amortization of deferred financing costs and original issue discount	6.5	8.0
Stock-based compensation	19.6	6.2
Deferred tax provision	18.6	4.3
Change in allowance for credit losses	1.2	1.4
Other, net	(9.7)	1.4
Changes in operating assets and liabilities:
Accounts receivable	73.7	34.5
Inventories	(117.3)	(126.9)
Other current and non-current assets	(14.4)	(27.6)
Accounts payable and accrued liabilities	(28.9)	(75.8)
Deferred revenue	(2.7)	(9.3)
Other current and non-current liabilities	7.3	2.9
Cash provided by (used in) operating activities	188.2	(48.6)
Cash Flows from Investing Activities:
Purchases of property, plant and equipment	(27.2)	(28.4)
Proceeds from cross currency swaps	15.2	2.7
Milestone payments and other, net	0.2	(1.8)
Cash used in investing activities	(11.7)	(27.5)
Cash Flows from Financing Activities:
Proceeds from initial public offering	1,426.4	0.0
Payment of initial public offering costs	(9.2)	0.0
Proceeds from long-term borrowings	0.0	1,421.0
Payments on long-term borrowings	(1,407.9)	(1,347.7)
Payments on short-term borrowings, net	(81.1)	(2.2)
Proceeds from exercise of stock options	9.9	0.2
Cash (used in) provided by financing activities	(61.9)	71.3
Effect of exchange rate changes on cash	(1.0)	0.5
Increase (decrease) in cash, cash equivalents and restricted cash	113.5	(4.3)
Cash, cash equivalents and restricted cash at beginning of period	144.2	84.0
Cash, cash equivalents and restricted cash at end of period	$ 257.7	$ 79.7