SUBSEQUENT EVENTS (Details)	1 Months Ended	3 Months Ended		187 Months Ended
	May 08, 2023 USD ($) $ / item shares	Mar. 31, 2023 USD ($) shares	Mar. 31, 2022 USD ($) shares	Mar. 31, 2023 USD ($) $ / item shares
Subsequent events
Number of depository receipts repurchased				1,498,809
Repurchase price of depository receipts (in dollars per receipt) | $ / item				30.44
Total cost of repurchase | $		$ 944,520	$ 1,337,814	$ 51,440,000
Units required to be repurchased (in shares)		431	589
Class B
Subsequent events
Number of depository receipts repurchased				4,129
Total cost of repurchase | $		$ 179,411	$ 254,118
General Partnership
Subsequent events
Number of depository receipts repurchased				217
Total cost of repurchase | $		$ 9,443	$ 13,375
Units required to be repurchased (in shares)		4.31
Subsequent event
Subsequent events
Number of depository receipts repurchased	525
Repurchase price of depository receipts (in dollars per receipt) | $ / item	71.67
Price per unit of depository receipts | $ / item	2,150.10
Total cost of repurchase | $	$ 37,876
Quarterly distribution (per unit) | $ / item	12.00
Quarterly distributions per depositary receipt (in dollars per receipt) | $ / item	0.40
Subsequent event | Class B
Subsequent events
Units required to be repurchased (in shares)	4
Value of units required to be repurchased | $	$ 9,931
Subsequent event | General Partnership
Subsequent events
Units required to be repurchased (in shares)	1
Value of units required to be repurchased | $	$ 523