Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	27.50%	28.30%	28.60%	27.20%
Effective income tax rate reconciliation, other tax benefit	$ 1.3		$ 1.1	$ 2.1
Effective income tax rate reconciliation, other tax expense		$ 0.2
Effective income tax rate reconciliation, excluding tax credits	29.50%	28.10%	29.50%	28.70%