CONSOLIDATED STATEMENTS OF CHANGES IN NET ASSETS (Unaudited) (Parenthetical) - $ / shares	3 Months Ended	6 Months Ended
Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Stockholders' Equity [Abstract]
Dividends to shareholders (in usd per share)	$ 0.50	$ 0.63	$ 0.54	$ 0.53	$ 1.13	$ 1.07

Per share or unit amount of distribution to shareholders. Includes, but is not limited to, dividend and capital gain. Excludes distribution for tax return of capital.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 205
-Section 50
-Paragraph 7
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=25866437&loc=d3e10246-115837

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration