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           Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail) (USD $) 
        In Thousands, unless otherwise specified  | 
        6 Months Ended | ||
|---|---|---|---|
| 
           Jun. 29, 2013 
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           Dec. 31, 2012 
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           Jun. 29, 2013
 
          Aerospace Segment [Member] 
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      |
| Goodwill [Line Items] | |||
| Beginning balance | $ 21,781 | $ 21,923 | $ 21,923 | 
| Foreign Currency Translation | (142) | ||
| Ending balance | $ 21,781 | $ 21,923 | $ 21,781 | 
| X | ||||||||||
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- Definition 
          Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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- Definition 
          Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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