XML 89 R75.htm IDEA: XBRL DOCUMENT v3.6.0.2
Property, Plant and Equipment (Narrative) (Details)
$ in Thousands, ₩ in Billions
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
Nov. 30, 2016
USD ($)
Nov. 30, 2016
KRW (₩)
Jun. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Property, Plant and Equipment [Line Items]              
Property, Plant and Equipment, Gross $ 6,427,413       $ 6,427,413 $ 6,072,394  
Proceeds from Sale of Property, Plant, and Equipment         45,635 6,945 $ 2,815
Gain (Loss) on Disposition of Property Plant Equipment         (1,390) (1,190) $ (1,276)
KOREA, REPUBLIC OF              
Property, Plant and Equipment [Line Items]              
Proceeds from Sale of Property, Plant, and Equipment   $ 135,000 ₩ 162.1        
Percentage of Proceeds Received   10.00% 10.00%        
K5 Facility [Member] | KOREA, REPUBLIC OF              
Property, Plant and Equipment [Line Items]              
Property, Plant and Equipment, Transfers and Changes 325,800            
Construction in Progress [Member]              
Property, Plant and Equipment [Line Items]              
Property, Plant and Equipment, Gross 87,037       87,037 352,607  
Construction in Progress [Member] | K5 Facility [Member] | KOREA, REPUBLIC OF              
Property, Plant and Equipment [Line Items]              
Property, Plant and Equipment, Gross $ 44,800       $ 44,800 $ 312,100  
Scenario, Forecast [Member] | KOREA, REPUBLIC OF              
Property, Plant and Equipment [Line Items]              
Gain (Loss) on Disposition of Property Plant Equipment       $ 100,000