Consolidated Statements of Equity - USD ($) $ in Millions	Total	Cumulative effect of changes in accounting principle, net of taxes	Common Shares	Additional Paid-in-Capital	Retained Earnings (Accumulated deficit)	Retained Earnings (Accumulated deficit) Cumulative effect of changes in accounting principle, net of taxes	Accumulated Other Comprehensive Loss	Non-Controlling Interests	2010 Equity Incentive Plan	2010 Equity Incentive Plan Common Shares	2010 Equity Incentive Plan Additional Paid-in-Capital
Beginning Balance (in shares) at Dec. 30, 2017			139,489,000
Beginning Balance at Dec. 30, 2017	$ 885.7		$ 917.1	$ 69.1	$ (12.2)		$ (94.4)	$ 6.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	383.5				382.9			0.6
Net current-period OCI	(7.3)						(7.3)
Common shares dividends	(33.7)				(33.7)
Share-based compensation	17.4			17.4
Common shares repurchased and canceled (in shares)			(4,981,000)
Common shares repurchased and canceled	(74.9)		$ (36.7)		(38.2)
Common shares issued- Equity Incentive Plan (in shares)										1,581,000
Common shares issued - Equity Incentive Plan									$ 5.0	$ 17.4	$ (12.4)
Common shares issued - Dividend Reinvestment Plan (in shares)			20,000
Common shares issued - Dividend Reinvestment Plan	0.3		$ 0.3
Common shares issued - Employee Stock Purchase Plan (in shares)			86,000
Common shares issued - Employee Stock Purchase Plan	1.1		$ 1.3	(0.2)
Distributions to non-controlling interests	(0.9)							(0.9)
Sale of subsidiary shares of non-controlling interests	(5.8)							(5.8)
Ending Balance (in shares) at Dec. 29, 2018			136,195,000
Ending Balance at Dec. 29, 2018	1,170.4	$ 10.5	$ 899.4	73.9	298.8	$ 10.5	(101.7)	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	2.9				2.9
Net current-period OCI	33.2						33.2
Common shares dividends	(32.6)				(32.6)
Share-based compensation	12.4			12.4
Common shares repurchased and canceled (in shares)			(2,270,000)
Common shares repurchased and canceled	(31.8)		$ (17.2)		(14.6)
Common shares issued- Equity Incentive Plan (in shares)										781,000
Common shares issued - Equity Incentive Plan									0.1	$ 8.8	(8.7)
Common shares issued - Dividend Reinvestment Plan (in shares)			3,000
Common shares issued - Employee Stock Purchase Plan (in shares)			94,000
Common shares issued - Employee Stock Purchase Plan	$ 1.1		$ 1.3	(0.2)
Ending Balance (in shares) at Dec. 28, 2019	134,803,211		134,803,000
Ending Balance at Dec. 28, 2019	$ 1,166.2	$ (3.6)	$ 892.3	77.4	265.0	$ (3.6)	(68.5)	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(131.7)				(131.7)
Net current-period OCI	(18.2)						(18.2)
Common shares dividends	(38.9)				(38.9)
Share-based compensation	$ 19.8			19.8
Common shares issued in connection with business combination and assumed vested awards, net of equity issuance costs of $1.1 million (in shares)	26,497,000
Common shares issued in connection with business combination and assumed vested awards, net of equity issuance costs of $1.1 million	$ 379.4		$ 376.5	2.9
Common shares repurchased and canceled (in shares)			(2,857,000)
Common shares repurchased and canceled	(33.2)		$ (23.5)		(9.7)
Common shares issued- Equity Incentive Plan (in shares)										1,833,000
Common shares issued - Equity Incentive Plan									$ 5.9	$ 21.2	$ (15.3)
Common shares issued - Dividend Reinvestment Plan (in shares)			1,000
Common shares issued - Dividend Reinvestment Plan	0.0
Common shares issued - Employee Stock Purchase Plan (in shares)			129,000
Common shares issued - Employee Stock Purchase Plan	$ 1.2		$ 1.5	(0.3)
Ending Balance (in shares) at Jan. 02, 2021	160,406,464		160,406,000
Ending Balance at Jan. 02, 2021	$ 1,346.9		$ 1,268.0	$ 84.5	$ 81.1		$ (86.7)	$ 0.0