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Pending Acquisition of Inotera (Details)
TWD / shares in Units, $ / shares in Units, $ in Millions, TWD in Billions
2 Months Ended 3 Months Ended
Mar. 29, 2016
May. 16, 2016
TWD
Sep. 01, 2016
USD ($)
$ / shares
Sep. 01, 2016
TWD
Sep. 01, 2016
TWD / shares
Mar. 03, 2016
TWD / $
Sep. 03, 2015
Inotera [Member]              
Pending Acquisition of Inotera [Abstract]              
Current Equity Ownership Percentage (in hundredths) [1]           33.00% 33.00%
Percentage interest held by a third party (in hundredths)           67.00%  
Inotera [Member] | Nanya and certain of its affiliates [Member]              
Pending Acquisition of Inotera [Abstract]              
Percentage interest held by a third party (in hundredths)           32.00%  
Inotera [Member] | Nanya and certain of its affiliates [Member] | Scenario, Forecast [Member]              
Pending Acquisition of Inotera [Abstract]              
Inotera Ownership Percentage Held By Third Party Subject to Voting and Support Agreements (in hundredths) 32.00%            
Inotera [Member]              
Pending Acquisition of Inotera [Abstract]              
Foreign Currency Exchange Rate, Translation | TWD / $           33.1  
Inotera [Member] | Scenario, Forecast [Member]              
Pending Acquisition of Inotera [Abstract]              
Inotera Acquisition, Share Price | (per share)     $ 0.91   TWD 30    
Pending Acquisition of Inotera, Potential Consideration [Abstract]              
Aggregate consideration payable for Inotera shares not already owned     $ 4,000        
Inotera [Member] | Scenario, Forecast [Member] | Private Placement [Member]              
Pending Acquisition of Inotera, Potential Consideration [Abstract]              
Trading-day period used to derive average share value of equity interests issuable to Nanya     30 days 30 days      
Number of days prior to the optional share issuance to Nanya that pricing is established     30 days 30 days      
Inotera [Member] | Scenario, Forecast [Member] | Maximum [Member] | Private Placement [Member]              
Pending Acquisition of Inotera, Potential Consideration [Abstract]              
Value of equity interests issuable to Nanya at our option as consideration for Inotera shares not already owned     $ 950 TWD 31.5      
Inotera [Member] | Scenario, Forecast [Member] | Maximum [Member] | Private Placement [Member] | Unsecured Debt [Member]              
Pending Acquisition of Inotera, Potential Consideration [Abstract]              
Amount of equity interests issuable to Nanya at our option which may potentially be substitued with notes     500        
Inotera [Member] | Scenario, Forecast [Member] | Minimum [Member]              
Pending Acquisition of Inotera, Potential Consideration [Abstract]              
Debt planned to be incurred toward consideration for Inotera shares not already owned     $ 2,400 TWD 80.0      
Debt commitment letters planned to be obtained | TWD   TWD 80.0          
[1] Entity is a variable interest entity.