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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2017
Feb. 21, 2018
Jun. 30, 2017
Document And Entity Information [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Document Period End Date Dec. 31, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Entity Registrant Name ETFS PALLADIUM TRUST    
Entity Central Index Key 0001459862    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Amendment Description This Annual Report on Form 10-K/A constitutes Amendment No. 1 ("the Amendment") to the ETFS Palladium Trust's Annual Report on Form 10-K for the year ended December 31, 2017, which was originally filed with the Securities and Exchange Commission on February 27, 2018 ("the Original Filing"). This Amendment is being filed solely to amend the dates of the opinions of KPMG LLP within Part II, Part IV and Exhibit 23.1 which were incorrect in the Original Filing. No other change is made to the Original Filing. This Amendment does not purport to provide an update or a discussion of any other developments subsequent to the Original Filing. Accordingly, this Amendment should be read in conjunction with the Original Filing.    
Trading Symbol pall    
Entity Public Float     $ 205,759,500
Entity Common Stock, Shares Outstanding   2,500,000