Schedule of Investments (Details) - Investments (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014 oz		Dec. 31, 2013 oz	Dec. 31, 2012 oz	Dec. 31, 2011 oz
Investments [Abstract]
Gold bullion (in Ounces)	5,182,200	[1]	5,220,500	6,999,900	5,498,800
Gold bullion	$ 6,254,868	[1]	$ 6,272,422
Gold bullion	$ 6,214,710	[1],[2]	$ 6,272,422
Gold bullion	100.02%	[1]

[1] Effective January 1, 2014, the Trust qualifies as an investment company for accounting purposes. Disclosure of a schedule of investments is required for investment companies. Please refer to Note 2B.

[2] Presented at fair value at December 31, 2014 (cost: $6,254,868).