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Canadian Dollar Deposits - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CAD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2021 CAD ($)	Dec. 31, 2020 CAD ($)
Cash And Cash Equivalents [Abstract]
Principal deposits	$ 201,450,598	$ 250,322,349	$ 81,057,573	$ 98,523,433
Principal redemptions	209,787,288	264,885,208	43,761,943	59,135,871
Withdrawals during period		$ 886,988		$ 439,240
Deposits, interest bearing	$ 139,650,371		$ 150,588,080		$ 176,399,366	$ 191,849,213
Annual nominal rate	0.00%				0.00%

X

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Rate of interest on investment.

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Total amount of cash paid for operating activities during the current period.

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