Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 27, 2014	Mar. 29, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income Taxes
Consolidated effective tax rates (as a percent)	27.90%		28.80%	32.80%	28.70%
Reversal of deferred tax assets		$ 2,350