Business Acquisitions Business Acquisition Details (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		3 Months Ended
	Sep. 28, 2013	Jan. 04, 2013	Dec. 28, 2013 EMD Singapore [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired		75.00%
Business Acquisition, Cost of Acquired Entity, Purchase Price	$ 26,890		$ 5,000
Business Acquisition, Effective Date of Acquisition	Jan. 04, 2013