Related Party Transactions - Disbursements to Trustees (Detail) - USD ($)		3 Months Ended			6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023		Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Trustee Fees and Expenses		$ 8,125	$ 1,250	[1]	$ 13,750	$ 11,250	[1]
Transfer Agent and Registrar Fees and Expenses	[2]	6,875	0		10,625	7,500
Individual Trustee Fees and Expenses [Member]
Related Party Transaction [Line Items]
Trustee Fees and Expenses		625	1,250		1,875	2,500
Corporate Trustee Fees and Expenses [Member]
Related Party Transaction [Line Items]
Trustee Fees and Expenses		$ 625	$ 0		$ 1,250	$ 1,250

[1] Corporate Trustee Fees and Expenses of $625 and Transfer Agent Registrar Fees and Expenses of $3,750 attributable to the three- and six-months ended June 30, 2023 were actually paid by the Trust in July 2023.

[2] These services are performed by the Corporate Trustee.