NET ASSETS - Summary of Changes in Net Assets (Details) - USD ($) $ in Thousands																																			12 Months Ended
	Dec. 29, 2025	Dec. 22, 2025	Nov. 25, 2025	Oct. 29, 2025	Sep. 30, 2025	Sep. 26, 2025	Aug. 27, 2025	Jul. 29, 2025	Jun. 30, 2025	Jun. 27, 2025	May 30, 2025	Apr. 29, 2025	Mar. 31, 2025	Mar. 18, 2025	Feb. 18, 2025	Jan. 17, 2025	Dec. 31, 2024	Dec. 17, 2024	Oct. 18, 2024	Sep. 30, 2024	Jul. 19, 2024	Jun. 30, 2024	Apr. 19, 2024	Mar. 31, 2024	Jan. 29, 2024	Dec. 31, 2023	Oct. 20, 2023	Sep. 30, 2023	Jul. 21, 2023	Jun. 30, 2023	Apr. 20, 2023	Mar. 31, 2023	Jan. 20, 2023	Dec. 31, 2022	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period (in shares)																																			76,812,863
Net assets at beginning of year																																			$ 1,492,462	$ 1,103,212	$ 1,151,501
Common stock issued																																			392,438	538,050	82,980
Dividend reinvestment																																			16,982	6,834	2,098
Repurchase of common stock (in shares)		(2,709,108)																										(755,715)		(1,562,102)		(2,043,878)		(2,117,816)
Repurchase of common stock					$ (23,033)				$ (34,036)				$ (12,674)				$ (16,063)			$ (11,244)		$ (15,591)		$ (53,405)		$ (59,799)		$ (14,694)		$ (30,205)		$ (40,285)		$ (41,763)	(85,806)	(140,039)	(126,948)
Net investment income (loss)																																			146,266	131,633	139,398
Net realized gain (loss)																																			(58,506)	(46,196)	(93)
Net change in unrealized appreciation (depreciation)																																			21,208	18,239	(31,170)
Dividends declared																																			$ (159,420)	$ (119,271)	(114,554)
Net assets at end of period (in shares)																	76,812,863																		93,812,679	76,812,863
Net assets at end of year																	$ 1,492,462									$ 1,103,212								$ 1,151,501	$ 1,765,624	$ 1,492,462	1,103,212
Class I Shares
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period (in shares)																																			76,812,863
Net assets at beginning of year																																			$ 1,549,238
Common stock issued																																			$ 392,438	$ 538,050	$ 82,980
Dividend reinvestment (in shares)	87,279		85,066	75,079		72,289	70,031	72,868		72,328	70,167	73,790		68,955	67,606	72,192		129,334	69,394		58,337		47,662		43,547		30,172		28,032		16,319		32,268		887,650	348,274	106,791
Dividend reinvestment	$ 1,643		$ 1,612	$ 1,429		$ 1,378	$ 1,335	$ 1,392		$ 1,381	$ 1,337	$ 1,419		$ 1,338	$ 1,315	$ 1,403		$ 2,523	$ 1,372		$ 1,156		$ 934		$ 849		$ 583		$ 553		$ 321		$ 641		$ 16,982	$ 6,834	$ 2,098
Repurchase of common stock (in shares)					(1,210,378)				(1,782,012)				(659,197)				(826,938)			(569,026)		(789,019)		(2,695,879)		(3,050,962)
Net assets at end of period (in shares)																	76,812,863																		93,812,679	76,812,863
Net assets at end of year																	$ 1,549,238																		$ 1,871,027	$ 1,549,238
Common Stock | Class I Shares
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of period (in shares)																																			76,812,863	56,280,182	58,396,516
Net assets at beginning of year																																			$ 768	$ 563	$ 584
Common stock issued (in shares)																																			20,590,691	27,289,294	4,256,386
Common stock issued																																			$ 206	$ 273	$ 43
Dividend reinvestment (in shares)																																			887,650	348,273	106,791
Dividend reinvestment																																			$ 9	$ 3	$ 1
Repurchase of common stock (in shares)																																			(4,478,525)	(7,104,886)	(6,479,511)
Repurchase of common stock																																			$ (45)	$ (71)	$ (65)
Net assets at end of period (in shares)																	76,812,863									56,280,182								58,396,516	93,812,679	76,812,863	56,280,182
Net assets at end of year																	$ 768									$ 563								$ 584	$ 938	$ 768	$ 563
Capital in Excess of Par Value
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of year																																			1,549,238	1,146,462	1,188,720
Common stock issued																																			392,232	537,777	82,937
Dividend reinvestment																																			16,973	6,831	2,097
Repurchase of common stock																																			(85,761)	(139,968)	(126,883)
Tax reclassification of stockholders’ equity in accordance with U.S. GAAP																																			(1,655)	(1,864)	(409)
Net assets at end of year																	1,549,238									1,146,462								1,188,720	1,871,027	1,549,238	1,146,462
Accumulated Net Investment Income (Loss)
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of year																																			48,343	31,238	8,819
Net investment income (loss)																																			146,266	131,633	139,398
Dividends declared																																			(159,420)	(119,271)	(114,554)
Tax reclassification of stockholders’ equity in accordance with U.S. GAAP																																			(4,189)	4,743	(2,425)
Net assets at end of year																	48,343									31,238								8,819	31,000	48,343	31,238
Accumulated Net Realized Gain (Loss)
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of year																																			(52,331)	(3,256)	(5,997)
Net realized gain (loss)																																			(58,506)	(46,196)	(93)
Tax reclassification of stockholders’ equity in accordance with U.S. GAAP																																			5,844	(2,879)	2,834
Net assets at end of year																	(52,331)									(3,256)								(5,997)	(104,993)	(52,331)	(3,256)
Accumulated Net Unrealized Appreciation (Depreciation)
Investment Company, Net Assets [Roll Forward]
Net assets at beginning of year																																			(53,556)	(71,795)	(40,625)
Net change in unrealized appreciation (depreciation)																																			21,208	18,239	(31,170)
Net assets at end of year																	$ (53,556)									$ (71,795)								$ (40,625)	$ (32,348)	$ (53,556)	$ (71,795)