Consolidated Statements of Equity - USD ($) $ in Millions	Total		Common Shares [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Non-Controlling Interests [Member]
Balance at Dec. 31, 2016	$ 873.8		$ 909.3	$ 54.2	$ 22.9	$ (117.9)	$ 5.3
Balance, shares at Dec. 31, 2016			138,591,000
Common shares repurchased and cancelled	(1.8)		$ (1.8)
Common shares repurchased and cancelled, shares			(150,000)
Common shares issued - Equity Incentive Plan, shares			410,000,000
Common shares issued - Equity Incentive Plan			$ 3.6	(3.6)
Common shares issued - Dividend Reinvestment Plan	0.1		$ 0.1
Common shares issued - Dividend Reinvestment Plan, shares			12,000
Common shares issued - Employee Stock Purchase Plan, shares			39,000,000
Common shares issued - Employee Stock Purchase Plan	0.4		$ 0.5	(0.1)
Share-based compensation	4.8			4.8
Common shares dividends	(8.4)				(8.4)
Distributions to non-controlling interests	(0.9)						(0.9)
Comprehensive (loss) income Currency translation adjustment	9.7
Pension benefit plan, net of tax	0.1	[1],[2]				0.1
Gain (loss) on derivative instruments, net of tax	2.4	[3]				2.4
Net (loss) income	(34.4)				(36.4)		2.0
Balance at Apr. 01, 2017	845.8		$ 911.7	55.3	(21.9)	(105.7)	6.4
Balance, shares at Apr. 01, 2017			138,902,000
Balance at Dec. 30, 2017	$ 885.7		$ 917.1	69.1	(12.2)	(94.4)	6.1
Balance, shares at Dec. 30, 2017	139,488,805		139,489,000
Common shares repurchased and cancelled	$ (5.6)		$ (5.6)
Common shares repurchased and cancelled, shares			(355,000)
Common shares issued - Equity Incentive Plan, shares			992,000,000
Common shares issued - Equity Incentive Plan	1.5		$ 10.3	(8.8)
Common shares issued - Dividend Reinvestment Plan	0.1		$ 0.1
Common shares issued - Dividend Reinvestment Plan, shares			8,000,000
Common shares issued - Employee Stock Purchase Plan, shares			26,000,000
Common shares issued - Employee Stock Purchase Plan	0.2		$ 0.3	(0.1)
Share-based compensation	3.4			3.4
Common shares dividends	(8.5)				(8.5)
Distributions to non-controlling interests	(0.9)						(0.9)
Sale of subsidiary shares of non-controlling interest	(5.8)						(5.8)
Comprehensive (loss) income Currency translation adjustment	18.6					18.6
Pension benefit plan, net of tax	16.9	[1],[2]				16.9
Gain (loss) on derivative instruments, net of tax	(3.8)	[3]				(3.8)
Net (loss) income	362.0				361.4		$ 0.6
Balance at Mar. 31, 2018	$ 1,263.8		$ 922.2	$ 63.6	$ 340.7	$ (62.7)
Balance, shares at Mar. 31, 2018	140,159,714		140,160,000

[1] Net of $3.6 million of associated tax impact that resulted in an increase to the gain on sale of discontinued operations for the three months ended March 31, 2018.

[2] Net of the effect of $0.1 million tax expense for the three months ended April 1, 2017.

[3] Net of the effect of $0.4 million tax benefit for the three months ended March 31, 2018.