Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Operating Activities
Net (loss) income	$ (71.5)	$ 20.6	$ 16.4
Depreciation & amortization	238.7	223.8	110.7
Amortization of financing fees	5.6	4.8	2.5
Amortization of senior notes premium	(5.9)	(5.6)	(0.4)
Share-based compensation expense	9.4	10.3	5.8
Provision (benefit) for deferred income taxes	21.2	(30.4)	(65.8)
Unrealized commodity hedging loss (gain), net	9.8	(1.2)	1.2
Loss on disposal of property, plant & equipment, net	6.1	6.9	1.7
Write-off of financing fees and discount			4.1
Asset impairments	0.0	0.0	1.7
Other non-cash items	9.2	(8.2)	(0.9)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	18.5	4.5	1.5
Inventories	22.6	6.5	12.9
Prepaid expenses and other current assets	(3.1)	30.8	(25.2)
Other assets	(0.5)	(8.5)	1.7
Accounts payable and accrued liabilities, and other liabilities	12.8	(3.3)	(6.8)
Income taxes recoverable	(3.1)	3.6	(4.4)
Net cash provided by operating activities	269.8	254.6	56.7
Investing Activities
Acquisitions, net of cash received	(959.4)	(24.0)	(798.5)
Additions to property, plant & equipment	(139.8)	(110.8)	(46.7)
Additions to intangible assets	(8.1)	(4.6)	(6.9)
Proceeds from sale of property, plant & equipment and sale-leaseback	8.8	40.9	1.8
Proceeds from insurance recoveries	1.5
Other investing activities	0.4	(1.2)
Net cash used in investing activities	(1,096.6)	(99.7)	(850.3)
Financing Activities
Payments of long-term debt	(3.6)	(3.7)	(393.6)
Issuance of long-term debt	498.7		1,150.0
Borrowings under ABL	2,403.2	994.5	959.0
Payments under ABL	(2,320.3)	(1,101.8)	(779.6)
Distributions to non-controlling interests	(7.7)	(8.5)	(8.5)
Issuance of common shares	366.8	143.1
Financing fees	(13.5)	(0.6)	(24.0)
Preferred shares repurchased and cancelled		(148.8)
Common shares repurchased and cancelled	(5.7)	(0.8)	(12.1)
Dividends to common and preferred shareholders	(31.4)	(31.0)	(22.8)
Payment of deferred consideration for acquisitions	(10.8)	(2.5)	(32.4)
Other financing activities			(0.3)
Net cash provided by (used in) financing activities	875.7	(160.1)	835.7
Effect of exchange rate changes on cash	(7.9)	(3.9)	(3.1)
Net increase (decrease) in cash & cash equivalents	41.0	(9.1)	39.0
Cash & cash equivalents, beginning of period	77.1	86.2	47.2
Cash & cash equivalents, end of period	118.1	77.1	86.2
Supplemental Non-cash Investing and Financing Activities:
Additions to property, plant & equipment through accounts payable and accrued liabilities	5.4	5.8	7.8
Acquisition related deferred consideration			19.0
Accrued deferred financing fees	0.5		1.5
Dividends payable issued through accounts payable and other accrued liabilities	0.3
Preferred Shares issued as consideration for DSS Acquisition			148.8
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	125.0	113.2	45.5
Cash paid for income taxes, net	$ 3.8	$ 2.8	$ 2.5