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Accumulated Other Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Oct. 01, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Gain from foreign currency translation adjustments $ 2,957 $ 2,789
Unrecognized actuarial gain, Switzerland pension plan, net of tax 157 143
Switzerland pension plan curtailment (388) (388)
Accumulated other comprehensive income $ 2,726 $ 2,544