Investments - Additional Information (Detail) $ in Millions		1 Months Ended
	May 12, 2022 USD ($)	Feb. 28, 2022 USD ($)	Mar. 31, 2022 year Investment
Schedule of Investments [Line Items]
Number of debt investments on non accrual status | Investment			0
VekTek | Subsequent Event
Schedule of Investments [Line Items]
Purchase of equity investments	$ 81.3
Total Senior Secured Notes
Schedule of Investments [Line Items]
Weighted average yield on debt investments (in percent)			15.30%
Weighted average years to maturity (in years) | year			4.8
Equity | VekTek | Subsequent Event
Schedule of Investments [Line Items]
Purchase of equity investments	$ 56.9
ATA | Equity
Schedule of Investments [Line Items]
Purchase of equity investments		$ 1.1