Organization - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2019 GBP (£) Account shares
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Initial deposits by sponsor, primary deposit account | £	£ 100
Organization formation date	Jun. 08, 2006
Number of deposits accounts in which trust's assets primarily consist of British Pounds Sterling | Account	2
Redemptions capital shares, number of shares in each block | shares	50,000