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STOCKHOLDERS' EQUITY TRANSACTIONS (Details) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
3 Months Ended
Apr. 04, 2015
May 31, 2008
STOCKHOLDERS' EQUITY TRANSACTIONS    
Shares of common stock authorized to be repurchased   4.0us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Purchases made under the program 0.3newp_StockRepurchaseProgramNumberOfSharesRepurchased  
Shares repurchased, value (in dollars) $ 5,995us-gaap_PaymentsForRepurchaseOfCommonStock  
Remaining shares to be repurchased 3.0us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased