Commitments and Contingencies (Details) $ in Thousands					3 Months Ended			6 Months Ended
	Jan. 13, 2021	Apr. 25, 2016 lawsuit	Apr. 24, 2016 lawsuit	Mar. 01, 2016 defendant lawsuit	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Oct. 25, 2021 USD ($)	Jul. 01, 2021 USD ($)	Apr. 20, 2021 USD ($)	Apr. 01, 2021 USD ($)	Mar. 31, 2021 USD ($)
Other Commitments [Line Items]
Monthly percentage of effective management fee percentage					8.33%			8.33%
Gross equity raised					$ 3,448,004	$ 3,196,072		$ 3,448,004	$ 3,196,072
Fee waiver adjustment, first quarter												$ 2,100		$ 2,400
Fee waiver adjustment, every month thereafter										$ 650	$ 700		$ 800
Management fees waived					$ 1,950	$ 2,100		$ 3,900	$ 4,500
Transactions
Other Commitments [Line Items]
Number of new claims filed | lawsuit		1	8	9
Number of defendants that are current directors | defendant				8
ACM
Other Commitments [Line Items]
Percentage of gross equity raised used in calculation of management fee up to 1 Billion					1.50%			1.50%
Percentage of gross equity raised used in calculation of management fee in excess of 1 Billion					0.75%			0.75%
Effective management fee percentage					0.97%	0.98%		0.97%	0.98%
Related party transaction, management fee reduction (as a percent)	40.00%						40.00%