Defined benefit plans	3 Months Ended
Defined benefit plans	Mar. 29, 2013
Defined benefit plans [Abstract]
Defined benefit plans	(7) Defined benefit plans We maintain defined benefit pension plans for certain U.S. and non-U.S. employees. The benefits under our domestic defined benefit plan were frozen as of December 31, 2010. Accrued benefits were based on years of service and average final compensation. We do not provide any post-retirement benefits outside of the U.S. except as may be required by certain foreign jurisdictions. Depending on the investment performance of our plan assets and other contributing factors, funding in a given year may not be required. Our net periodic pension benefit was less than $0.1 million and approximately $0.2 million for the three months ended March 29, 2013 and March 30, 2012, respectively. In the three months ended March 29, 2013, we contributed less than $0.1 million to our defined benefit plans.

The entire disclosure for pension and other postretirement benefits.

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