Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Cash flows from operating activities of continuing operations:
Net income (loss)	$ 22.0	$ 10.1	$ (110.5)	$ (5.2)
Net (loss) income from discontinued operations, net of income taxes	(0.3)	2.8	26.3	7.5
Net income (loss) from continuing operations	22.3	7.3	(136.8)	(12.7)
Adjustments to reconcile net income (loss) from continuing operations to cash flows from operating activities:
Depreciation and amortization	53.6	41.7	151.4	124.3
Amortization of financing fees	0.9	0.9	2.7	2.6
Share-based compensation expense	6.2	1.5	13.5	8.0
Provision (benefit) for deferred income taxes	1.8	7.1	(2.6)	1.0
(Gain) loss on sale of business	0.0	0.0	(0.6)	6.0
Goodwill and intangible asset impairment charges	0.0	0.0	115.2	0.0
Loss on disposal of property, plant and equipment, net	2.3	1.1	6.2	4.7
Other non-cash items	(2.8)	3.6	1.7	0.0
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	(48.6)	(7.2)	(38.5)	(28.9)
Inventories	0.5	(2.5)	3.0	(6.8)
Prepaid expenses and other current assets	(3.9)	0.3	(3.5)	0.6
Other assets	(0.3)	0.1	(0.9)	1.3
Accounts payable and accrued liabilities and other liabilities	21.2	34.1	12.6	4.2
Net cash provided by operating activities from continuing operations	53.2	88.0	123.4	104.3
Cash flows from investing activities of continuing operations:
Acquisitions, net of cash received	(1.2)	(5.2)	(435.7)	(30.7)
Additions to property, plant and equipment	(21.4)	(32.9)	(85.0)	(79.2)
Additions to intangible assets	(2.5)	(3.1)	(7.9)	(5.9)
Proceeds from sale of property, plant and equipment	0.2	0.4	1.0	2.3
Proceeds from sale of business, net of cash sold	0.0	0.0	0.0	50.5
Other investing activities	0.0	0.4	1.1	0.4
Net cash used in investing activities from continuing operations	(24.9)	(40.4)	(526.5)	(62.6)
Cash flows from financing activities of continuing operations:
Payments of long-term debt	(2.3)	(1.3)	(7.6)	(4.1)
Proceeds from short-term borrowings	0.0	1.2	323.9	64.1
Payments on short-term borrowings	(70.0)	(1.2)	(279.9)	(63.1)
Issuance of common shares	1.2	0.2	2.0	0.9
Common shares repurchased and canceled	(0.2)	(0.1)	(32.3)	(31.1)
Financing fees	(0.6)	0.0	(3.4)	0.0
Equity issuance fees	0.0	0.0	(1.1)	0.0
Dividends paid to common shareholders	(9.6)	(8.2)	(29.9)	(24.4)
Payment of deferred consideration for acquisitions	0.0	0.0	(1.2)	(0.2)
Other financing activities	7.9	2.0	19.1	5.4
Net cash used in financing activities from continuing operations	(73.6)	(7.4)	(10.4)	(52.5)
Cash flows from discontinued operations:
Operating activities of discontinued operations	(0.7)	(5.9)	(18.7)	9.7
Investing activities of discontinued operations	(4.0)	(3.0)	388.9	(26.2)
Financing activities of discontinued operations	0.0	(0.2)	(0.1)	(0.4)
Net cash (used in) provided by discontinued operations	(4.7)	(9.1)	370.1	(16.9)
Effect of exchange rate changes on cash	0.8	(0.9)	(0.2)	0.5
Net (decrease) increase in cash, cash equivalents and restricted cash	(49.2)	30.2	(43.6)	(27.2)
Cash and cash equivalents and restricted cash, beginning of period	211.1	113.4	205.5	170.8
Cash and cash equivalents and restricted cash, end of period	161.9	143.6	161.9	143.6
Cash and cash equivalents and restricted cash from discontinued operations, end of period	0.0	24.7	0.0	24.7
Cash and cash equivalents and restricted cash from continuing operations, end of period	161.9	118.9	161.9	118.9
Supplemental Non-cash Investing and Financing Activities:
Shares issued in connection with business combination	0.0	0.0	377.6	0.0
Dividends payable issued through accounts payable and accrued liabilities	0.1	0.0	0.3	0.1
Additions to property, plant and equipment through accounts payable and accrued liabilities and other liabilities	13.1	13.3	14.7	17.0
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	16.2	3.0	54.8	53.3
Cash paid for income taxes, net	$ 4.1	$ 1.4	$ 6.8	$ 6.5