Equity Activity - Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period		$ (41.8)		$ (35.7)
Other comprehensive income (loss) before reclassifications		2.4		(4.1)
Amounts reclassified from AOCI to SG&A	[1]	0.3		0.7
Other comprehensive income (loss)		2.7	$ 1.8	(3.4)	$ (0.7)
Balance, end of period		(39.1)		(39.1)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period		(14.9)		(8.8)
Other comprehensive income (loss) before reclassifications		2.3		(3.8)
Amounts reclassified from AOCI to SG&A	[1]	0.0		0.0
Other comprehensive income (loss)		2.3		(3.8)
Balance, end of period		(12.6)		(12.6)
Pension Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period		(26.9)		(26.9)
Other comprehensive income (loss) before reclassifications		0.1		(0.3)
Amounts reclassified from AOCI to SG&A	[1]	0.3		0.7
Other comprehensive income (loss)		0.4		0.4
Balance, end of period		$ (26.5)		$ (26.5)

[1] For additional information, see Note L, "Pension, Profit Sharing and & Other Post-Retirement Benefits".