Employee Retirement Plans - Additional Information (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 28, 2013
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Dec. 29, 2012
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Dec. 31, 2011
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Defined Benefit Plan Disclosure [Line Items] | |||
Number of defined contribution 401K savings plans | 2 | ||
Smithville Plan [Member]
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Defined Benefit Plan Disclosure [Line Items] | |||
Expected contributions to the pension plan | .9 | ||
Wrexham Plan [Member]
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Defined Benefit Plan Disclosure [Line Items] | |||
Expected contributions to the pension plan | .5 | ||
Maximum [Member]
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Defined Benefit Plan Disclosure [Line Items] | |||
Contributions by employer to 401K savings plan | $ 0.1 | $ 0.1 | $ 0.1 |