Goodwill and Other Intangible Assets - (Changes in Goodwill) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Impaired, Accumulated Impairment Loss	$ 232,800,000		$ 232,800,000		$ 84,300,000
Goodwill [Rollforward]
Balance at December 28, 2013			471,791,000
Foreign currency translation			(4,892,000)
Balance at June 28, 2014	318,395,000		318,395,000
Goodwill, Impairment Loss	$ (148,504,000)	$ 0	$ (148,504,000)	$ 0