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Schedule of Distributions Declared (Detail) - USD ($) $ in Thousands								9 Months Ended
		Oct. 07, 2024	Jun. 28, 2024	Mar. 28, 2024	Oct. 16, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Dividends Payable [Line Items]
Payment of dividends		$ 4,782	$ 4,774	$ 4,752	$ 3,385	$ 3,375	$ 3,410	$ 14,326	$ 10,150
O 2024 Q1 Dividends
Dividends Payable [Line Items]
Approval Date								Mar. 06, 2024
Record Date								Mar. 21, 2024
Payment Date								Mar. 28, 2024
O 2024 Q2 Dividends
Dividends Payable [Line Items]
Approval Date								Jun. 06, 2024
Record Date								Jun. 21, 2024
Payment Date								Jun. 28, 2024
O 2024 Q3 Dividends
Dividends Payable [Line Items]
Approval Date								Sep. 19, 2024
Record Date								Sep. 30, 2024
Payment Date								Oct. 07, 2024
O 2023 Q1 Dividends
Dividends Payable [Line Items]
Approval Date									Mar. 02, 2023
Record Date									Mar. 24, 2023
Payment Date									Mar. 31, 2023
O 2023 Q2 Dividends
Dividends Payable [Line Items]
Approval Date									Jun. 01, 2023
Record Date									Jun. 23, 2023
Payment Date									Jun. 30, 2023
O 2023 Q3 Dividends
Dividends Payable [Line Items]
Approval Date									Sep. 28, 2023
Record Date									Oct. 09, 2023
Payment Date									Oct. 16, 2023
Unvested Shares, Net of Forfeitures
Dividends Payable [Line Items]
Approval Date	[1]							Various	Various
Record Date	[1]							Various	Various
Payment Date	[1]							Various	Various
Payment of dividends	[1]							$ 18	$ (20)
[1] Represents distributions declared on unvested shares, net of forfeitures.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-SubTopic 405
-Topic 942
-Publisher FASB
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