Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Market Forge Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013	Jan. 07, 2014 Market Forge [Member] as initially reported
Business Acquisition [Line Items]
Property, plant and equipment			$ 120
Current assets			2,051
Goodwill			5,252
Other intangibles			4,191
Current liabilities			4,374
Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Initial Consideration, Net			7,240
Business Acquisition, Deferred Payments			3,000
Business Combination, Contingent Consideration	9,893	8,628	1,374
Net assets acquired and liabilities assumed			$ 11,614