Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Cash flows from operating activities of continuing operations:
Net loss	$ (8.3)	$ (136.0)	$ (18.5)	$ (132.5)
Net (loss) income from discontinued operations, net of income taxes	0.0	(4.3)	0.0	26.6
Net loss from continuing operations	(8.3)	(131.7)	(18.5)	(159.1)
Adjustments to reconcile net loss from continuing operations to cash flows from operating activities:
Depreciation and amortization	52.0	52.8	105.1	97.8
Amortization of financing fees	0.9	0.9	1.7	1.8
Share-based compensation expense	3.8	4.9	6.2	7.3
Benefit for deferred income taxes	(4.2)	(0.9)	(0.6)	(4.4)
Loss on extinguishment of debt	27.2	0.0	27.2	0.0
Gain on sale of business	0.0	(0.6)	0.0	(0.6)
Goodwill and intangible asset impairment charges	0.0	115.2	0.0	115.2
Loss on disposal of property, plant and equipment, net	3.3	2.5	5.4	3.9
Other non-cash items	(1.2)	(1.5)	(1.0)	4.5
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	(52.2)	39.0	(61.9)	10.1
Inventories	(6.3)	3.1	(3.1)	2.5
Prepaid expenses and other current assets	(2.0)	1.9	(4.2)	0.4
Other assets	0.2	(1.3)	0.3	(0.6)
Accounts payable and accrued liabilities and other liabilities	46.4	(18.8)	31.7	(8.6)
Net cash provided by operating activities from continuing operations	59.6	65.5	88.3	70.2
Cash flows from investing activities of continuing operations:
Acquisitions, net of cash received	(0.3)	(11.9)	(0.3)	(434.5)
Additions to property, plant and equipment	(34.8)	(28.7)	(61.8)	(63.6)
Additions to intangible assets	(1.8)	(2.4)	(4.1)	(5.4)
Proceeds from sale of property, plant and equipment	0.6	0.5	0.7	0.8
Other investing activities	0.0	1.1	0.0	1.1
Net cash used in investing activities from continuing operations	(36.3)	(41.4)	(65.5)	(501.6)
Cash flows from financing activities of continuing operations:
Payments of long-term debt	(753.6)	(2.6)	(757.0)	(5.3)
Issuance of long-term debt	750.0	0.0	750.0	0.0
Proceeds from short-term borrowings	45.0	188.0	45.0	323.9
Payments on short-term borrowings	(10.0)	(100.0)	(10.0)	(209.9)
Premiums and costs paid upon extinguishment of long-term debt	(20.6)	0.0	(20.6)	0.0
Issuance of common shares	14.7	0.2	15.7	0.8
Common shares repurchased and canceled	(13.2)	(0.2)	(16.3)	(32.1)
Financing fees	(10.6)	(0.3)	(11.3)	(2.8)
Equity issuance fees	0.0	0.0	0.0	(1.1)
Dividends paid to common shareholders	(9.9)	(10.5)	(19.6)	(20.3)
Payment of deferred consideration for acquisitions	(0.1)	(1.0)	(1.8)	(1.2)
Other financing activities	(0.9)	2.4	4.3	11.2
Net cash (used in) provided by financing activities from continuing operations	(9.2)	76.0	(21.6)	63.2
Cash flows from discontinued operations:
Operating activities of discontinued operations	(2.6)	(0.7)	(1.8)	(18.0)
Investing activities of discontinued operations	0.0	(1.6)	0.0	392.9
Financing activities of discontinued operations	0.0	0.0	0.0	(0.1)
Net cash (used in) provided by discontinued operations	(2.6)	(2.3)	(1.8)	374.8
Effect of exchange rate changes on cash	0.5	1.1	(0.3)	(1.0)
Net increase (decrease) in cash, cash equivalents and restricted cash	12.0	98.9	(0.9)	5.6
Cash and cash equivalents and restricted cash, beginning of period	102.2	112.2	115.1	205.5
Cash and cash equivalents and restricted cash, end of period	114.2	211.1	114.2	211.1
Supplemental Non-cash Investing and Financing Activities:
Shares issued in connection with business combination	0.0	0.0	0.0	377.6
Accrued deferred financing fees	0.0	0.0	0.0	0.6
Dividends payable issued through accounts payable and accrued liabilities	0.0	0.0	0.1	0.2
Additions to property, plant and equipment through accounts payable and accrued liabilities and other liabilities	11.9	9.0	19.4	12.7
Financing lease right-of-use assets obtained in exchange for lease obligations	3.3	2.3	5.9	24.0
Operating lease right-of-use assets obtained in exchange for lease obligations	11.5	7.6	18.2	14.9
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	16.9	23.0	40.2	38.6
Cash paid for income taxes, net	$ 4.3	$ 0.3	$ 6.2	$ 2.7