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BUSINESS COMBINATIONS Schedule of Business Acquisitions, By Acquisition (Details) (USD $)
In Thousands, unless otherwise specified
 0 Months Ended
Jul. 31, 2014
Business Combinations [Abstract]  
Purchase Price - Cash $ 142,639atml_PurchasePriceCash
Fair value of earn-out 420atml_Fairvalueofearnout
Total purchase price $ 143,059atml_Totalpurchaseprice