Capital Transactions - Summary of Shares Issued and Proceeds Received in Connection with Offerings (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Distributions Reinvestment
Proceeds to Company	$ 5,519	$ 4,693	$ 16,029	$ 13,093
Total
Shares Issued (in shares)			3,221	5,331
Net Proceeds to Company			$ 118,507	$ 182,226
Average Net Proceeds per Share (in usd per share)	$ 36.78	$ 34.18	$ 36.78	$ 34.18
Proceeds from Public Offerings
Proceeds from Public Offerings
Shares Issued (in shares)			2,784	4,948
Gross Proceeds			$ 103,209	$ 171,133
Sales Load			(731)	(2,000)
Net Proceeds to Company			$ 102,478	$ 169,133
Distributions Reinvested
Distributions Reinvestment
Shares Issued (in shares)			437	383
Proceeds to Company			$ 16,029	$ 13,093
Class A
Total
Shares Issued (in shares)			167	2,128
Net Proceeds to Company			$ 6,078	$ 72,358
Average Net Proceeds per Share (in usd per share)	36.35	34.00	$ 36.35	$ 34.00
Class A | Proceeds from Public Offerings
Proceeds from Public Offerings
Shares Issued (in shares)			15	2,013
Gross Proceeds			$ 576	$ 69,980
Sales Load			(45)	(1,542)
Net Proceeds to Company			$ 531	$ 68,438
Class A | Distributions Reinvested
Distributions Reinvestment
Shares Issued (in shares)			152	115
Proceeds to Company			$ 5,547	$ 3,920
Class T
Total
Shares Issued (in shares)			428	321
Net Proceeds to Company			$ 15,621	$ 10,923
Average Net Proceeds per Share (in usd per share)	36.48	34.05	$ 36.48	$ 34.05
Class T | Proceeds from Public Offerings
Proceeds from Public Offerings
Shares Issued (in shares)			395	282
Gross Proceeds			$ 15,103	$ 10,061
Sales Load			(686)	(458)
Net Proceeds to Company			$ 14,417	$ 9,603
Class T | Distributions Reinvested
Distributions Reinvestment
Shares Issued (in shares)			33	39
Proceeds to Company			$ 1,204	$ 1,320
Class D
Total
Shares Issued (in shares)			107	518
Net Proceeds to Company			$ 3,888	$ 17,485
Average Net Proceeds per Share (in usd per share)	36.14	33.76	$ 36.14	$ 33.76
Class D | Proceeds from Public Offerings
Proceeds from Public Offerings
Shares Issued (in shares)			65	476
Gross Proceeds			$ 2,343	$ 16,070
Sales Load			0	0
Net Proceeds to Company			$ 2,343	$ 16,070
Class D | Distributions Reinvested
Distributions Reinvestment
Shares Issued (in shares)			42	42
Proceeds to Company			$ 1,545	$ 1,415
Class I
Total
Shares Issued (in shares)			2,519	2,364
Net Proceeds to Company			$ 92,920	$ 81,460
Average Net Proceeds per Share (in usd per share)	$ 36.89	$ 34.46	$ 36.89	$ 34.46
Class I | Proceeds from Public Offerings
Proceeds from Public Offerings
Shares Issued (in shares)			2,309	2,177
Gross Proceeds			$ 85,187	$ 75,022
Sales Load			0	0
Net Proceeds to Company			$ 85,187	$ 75,022
Class I | Distributions Reinvested
Distributions Reinvestment
Shares Issued (in shares)			210	187
Proceeds to Company			$ 7,733	$ 6,438