Income Taxes - Components of Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 27, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
Domestic									$ (54.2)	$ (78.8)	$ (34.0)
Foreign									9.6	7.0	5.6
Loss from continuing operations before income taxes									(44.6)	(71.8)	(28.4)
Federal income taxes:
Current									(15.7)	0.0	0.0
Deferred									1.4	2.9	0.0
Total Federal									(14.3)	2.9	0.0
State and local income taxes
Current									0.8	1.6	1.9
Deferred									0.0	(1.7)	(0.6)
Total State and local									0.8	(0.1)	1.3
Foreign income taxes:
Current									1.2	0.7	(0.1)
Deferred									0.9	0.4	(0.1)
Total Foreign									2.1	1.1	(0.2)
Total	$ (0.3)	$ (15.3)	$ 2.3	$ 1.9	$ 0.8	$ (0.2)	$ 1.2	$ 2.1	$ (11.4)	$ 3.9	$ 1.1