Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Operating Activities:
Net income	$ 112.2	$ 12.4	$ 155.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44.7	55.2	58.2
Unrealized foreign exchange loss (gain)	0.7	(0.5)	(0.6)
Stock-based compensation	8.9	10.4	14.5
Amortization of deferred debt issuance costs	1.8	0.7	0.6
Gain on disposal of assets	(14.0)	(13.4)	(18.8)
Provision for bad debts	13.5	28.6	20.4
Gain on debt extinguishment	(47.7)	0.0	0.0
Write-down of inventories	15.6	12.4	7.5
Non-cash impact of impairment expense and re-engineering charges	0.0	40.0	1.3
Net change in deferred taxes	5.8	19.1	59.8
Net cash impact from hedging activity	3.6	(2.3)	2.9
Other	0.1	0.2	0.0
Changes in assets and liabilities:
Accounts and notes receivable	(13.9)	9.3	(33.8)
Inventories	(8.8)	(1.6)	(25.8)
Non-trade amounts receivable	2.4	(3.4)	1.0
Prepaid expenses	(5.1)	(0.5)	1.1
Other assets	(18.3)	(7.6)	1.1
Accounts payable and accrued liabilities	46.7	(28.6)	(43.8)
Income taxes payable	25.8	(34.8)	(69.1)
Other liabilities	(7.9)	(8.2)	(0.4)
Net cash provided by operating activities	166.1	87.4	132.0
Investing Activities:
Capital expenditures	(27.9)	(61.0)	(75.4)
Proceeds from disposal of property, plant and equipment	59.4	34.0	40.7
Net cash provided by (used in) investing activities	31.5	(27.0)	(34.7)
Financing Activities:
Senior notes repayment	(552.3)	0.0	0.0
Proceeds from term loan	275.0	0.0	0.0
Net increase (decrease) in short-term debt	131.0	(6.2)	162.1
Debt issuance costs	(20.7)	(2.3)	0.0
Finance lease repayments	(0.6)	(1.6)	(1.9)
Common stock repurchase	(1.6)	(0.9)	(101.7)
Proceeds from exercise of stock options	0.2	0.0	0.3
Common stock cash dividends paid	0.0	(74.3)	(137.8)
Net cash used in financing activities	(169.0)	(85.3)	(79.0)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(4.2)	(0.9)	(13.6)
Net change in cash, cash equivalents and restricted cash	24.4	(25.8)	4.7
Cash, cash equivalents and restricted cash at beginning of year	126.1	151.9	147.2
Cash, cash equivalents and restricted cash at end of year	$ 150.5	$ 126.1	$ 151.9