SUBSEQUENT EVENTS (Details)	1 Months Ended				6 Months Ended
	Aug. 31, 2022 $ / item	Aug. 05, 2022 USD ($) $ / item shares	Apr. 30, 2022 $ / item	Jan. 31, 2022 $ / item	Jun. 30, 2022 USD ($) $ / item shares	Jul. 31, 2022 USD ($)	Dec. 31, 2021 $ / item	Sep. 30, 2021 $ / item	Jun. 30, 2021 $ / item	Mar. 31, 2021 $ / item
Subsequent events
Total cost of repurchase					$ 3,688,961
Units required to be repurchased (in shares) | shares					1,574
Quarterly distribution per unit approved (in dollars per unit) | $ / item			9.60	9.60
Quarterly distribution per unit (in dollars per unit) | $ / item				0.32			0.32	0.32	0.32	0.32
Special distribution per depository receipt (in dollars per receipt) | $ / item				1.28
Special distribution per unit (in dollars per unit) | $ / item				38.40
Subsequent event
Subsequent events
Number of depository receipts repurchased | shares		3,430
Repurchase price of depository receipts (in dollars per receipt) | $ / item		78.18
Price per unit of depository receipts | $ / item		2,345.40
Total cost of repurchase		$ 268,607
Quarterly distribution per unit approved (in dollars per unit) | $ / item	9.60
Quarterly distribution per unit (in dollars per unit) | $ / item	0.32
U.S Treasury Bills						$ 90,000,000
Class B
Subsequent events
Total cost of repurchase					$ 700,523
Value of units required to be repurchased					700,523
Class B | Subsequent event
Subsequent events
Units required to be repurchased (in shares) | shares		27
Value of units required to be repurchased		$ 63,687
General Partnership
Subsequent events
Total cost of repurchase					36,869
Value of units required to be repurchased					$ 36,870
General Partnership | Subsequent event
Subsequent events
Units required to be repurchased (in shares) | shares		1
Value of units required to be repurchased		$ 3,352
Class A
Subsequent events
Number of depository receipts repurchased | shares					37,773
Repurchase price of depository receipts (in dollars per receipt) | $ / item					78.09
Total cost of repurchase					$ 2,951,569