Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Cash flows from operating activities of continuing operations:
Net (loss) income	$ (3.2)	$ (131.7)	$ 2.9
Net income from discontinued operations, net of income taxes	0.0	25.1	13.7
Net loss from continuing operations	(3.2)	(156.8)	(10.8)
Adjustments to reconcile net loss from continuing operations to cash flows from operating activities:
Depreciation and amortization	219.1	202.1	168.6
Amortization of financing fees	3.4	3.5	3.5
Share-based compensation expense	17.5	22.1	11.7
Provision (benefit) for deferred income taxes	4.0	0.2	(1.1)
Loss on extinguishment of long-term debt	27.2	19.7	0.0
(Gain) loss on sale of business	(3.8)	(0.6)	6.0
Goodwill and intangible asset impairment charges	0.0	115.2	0.0
Loss on disposal of property, plant and equipment, net	9.3	10.6	7.6
Other non-cash items	6.8	(1.2)	(2.4)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	(32.6)	14.2	13.9
Inventories	(10.9)	1.0	(5.4)
Prepaid expenses and other current assets	(4.5)	2.4	4.4
Other assets	0.2	(3.6)	1.5
Accounts payable and accrued liabilities and other liabilities	26.2	(35.2)	7.7
Net cash provided by operating activities from continuing operations	258.7	193.6	205.2
Cash flows from investing activities of continuing operations:
Acquisitions, net of cash received	(90.5)	(446.1)	(54.6)
Additions to property, plant and equipment	(152.0)	(114.0)	(101.3)
Additions to intangible assets	(9.7)	(9.3)	(8.8)
Proceeds from sale of property, plant and equipment	1.9	1.8	2.2
Proceeds from sale of business, net of cash sold	7.1	0.0	50.5
Other investing activities	2.3	0.7	0.4
Net cash used in investing activities from continuing operations	(240.9)	(566.9)	(111.6)
Cash flows from financing activities of continuing operations:
Payments of long-term debt	(763.9)	(545.6)	(5.0)
Issuance of long-term debt	750.0	533.5	0.0
Payments on short-term borrowings	(28.0)	(334.7)	(64.2)
Proceeds from short-term borrowings	134.2	347.5	75.1
Premiums and costs paid upon extinguishment of long-term debt	(20.6)	(14.7)	0.0
Issuance of common shares	25.5	3.4	1.2
Common shares repurchased and canceled	(48.1)	(33.2)	(31.8)
Financing fees	(11.6)	(11.2)	0.0
Equity issuance fees	0.0	(1.1)	0.0
Dividends paid to common and preferred shareholders	(38.9)	(39.6)	(32.5)
Payment of contingent consideration for acquisitions	(2.9)	(1.2)	(0.3)
Other financing activities	3.5	5.9	(7.9)
Net cash used in financing activities from continuing operations	(0.8)	(91.0)	(65.4)
Cash flows from discontinued operations:
Operating activities of discontinued operations	(1.8)	(17.4)	41.6
Investing activities of discontinued operations	0.0	388.9	(36.2)
Financing activities of discontinued operations	0.0	(0.1)	(0.6)
Net cash (used in) provided by discontinued operations	(1.8)	371.4	4.8
Effect of exchange rate changes on cash	(1.9)	2.5	1.7
Net increase (decrease) in cash, cash equivalents and restricted cash	13.3	(90.4)	34.7
Cash and cash equivalents and restricted cash, beginning of year	115.1	205.5	170.8
Cash and cash equivalents and restricted cash, end of year	128.4	115.1	205.5
Cash and cash equivalents and restricted cash of discontinued operations, end of year	0.0	0.0	48.6
Cash and cash equivalents and restricted cash from continuing operations, end of year	128.4	115.1	156.9
Supplemental Non-cash Investing and Financing Activities:
Shares issued in connection with business combination	0.0	377.6	0.0
Additions to property, plant and equipment through accounts payable and accrued liabilities and other liabilities	21.5	12.5	14.2
Accrued deferred financing fees	0.0	0.7	0.0
Dividends payable issued through accounts payable and other accrued liabilities	0.4	0.3	0.1
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	70.7	87.2	74.6
Cash paid for income taxes, net	$ 8.3	$ 8.1	$ 6.7