Organization - Additional Information (Detail) - shares			12 Months Ended			20 Months Ended
	Dec. 09, 2020	May 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Committee for uniform securities identification procedures (CUSIP), number	091749101
Percentage of management fee paid by shareholders						2.50%
Stock issued during period shares			5,109,707	11,546,046	74,584
Investor Class [Member]
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of management fee paid by shareholders			2.50%
Stock issued during period shares			5,109,707	11,540,051	69,244
Institutional Class [Member]
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of management fee paid by shareholders			2.00%
Stock issued during period shares				5,995	5,340
Conversion [Member] | Stock Issued Per Unit Held [Member] | Investor Class [Member]
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Stock issued during period shares		10
Conversion [Member] | Stock Issued Per Unit Held [Member] | Institutional Class [Member]
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Stock issued during period shares		10.126022288931