Schedules of Investments (Unaudited) $ in Thousands	Mar. 31, 2021 USD ($) oz	Jun. 30, 2020 USD ($) oz
Investment Company [Abstract]
Investment in Gold bullion (oz) | oz	594,723.682	589,025.927
Cost	$ 910,835	$ 839,963
Fair Value	$ 1,005,708	$ 1,041,457
% of Net Assets	100.02%	100.01%
Less Liabilities in excess of other assets	$ (153)	$ (141)
Less Liabilities in excess of other assets, % of Net Assets	(0.02%)	(0.01%)
Net Assets	$ 1,005,555	$ 1,041,316
Net Assets, % of Net Assets	100.00%	100.00%