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Significant Accounting Policies - Assets under Management (AUM) Subject to Incentive Fees and Incentive Fees (Detail)	6 Months Ended
	Jun. 30, 2018 USD ($)
Quarter Ending December 31, 2018
Principal Transaction Revenue [Line Items]
AUM subject to variable rate fees	$ 103,406,795
Unearned variable rate fees	1,352,041
Quarter Ending September 30, 2019
Principal Transaction Revenue [Line Items]
AUM subject to variable rate fees	35,092,891
Unearned variable rate fees	559,421
Quarter Ending March 31, 2020
Principal Transaction Revenue [Line Items]
AUM subject to variable rate fees	12,800,012
Unearned variable rate fees	0
Quarter Ending September 30, 2021
Principal Transaction Revenue [Line Items]
AUM subject to variable rate fees	263,730,212
Unearned variable rate fees	3,578,497
Total
Principal Transaction Revenue [Line Items]
AUM subject to variable rate fees	415,029,910
Unearned variable rate fees	$ 5,489,959

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- Definition

Assets under management (AUM) subject to variable performance fees and variable performance fees.

+ References

No definition available.

+ Details

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- Definition

Potential Variable Fees Based Upon Current Investment Results

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No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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