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- Definition

Investment Company, Ordinary Interest Related Distributions, Percentage

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated undistributed earnings (deficit) from ordinary income (loss) of investment company.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of cost of investment for federal income tax purpose.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Section S99
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- Definition

Amount of cumulative increase in investment from unrealized gain when value exceeds cost for federal income tax purpose.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of cumulative decrease in investment from unrealized loss when cost for federal income tax purpose exceeds value.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of cumulative increase (decrease) in investment from unrealized gain (loss) when value exceeds (is less than) cost for federal income tax purpose.

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INCOME TAXES - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2025	Mar. 31, 2024
Income Tax Contingency [Line Items]
Dividends cash paid (in usd per share)		$ 2.5604	$ 2.53	$ 2.42
Total distributions (in percent)		82.55%	92.89%
Undistributed ordinary income - tax basis	$ 64,528				$ 41,594	$ 28,845
Cumulative undistributed taxable income (in usd per share)	$ 1.07
Cost of investments	$ 2,122,300				1,776,100
Gross unrealized appreciation	109,000				117,400
Gross unrealized depreciation	133,800				108,200
Net unrealized appreciation (depreciation)	(24,800)				(9,200)
Total net deferred tax (liabilities) assets	(12,507)				$ (16,780)
International
Income Tax Contingency [Line Items]
Total distributions (in percent)		82.55%	92.89%
RIC
Income Tax Contingency [Line Items]
Cost of investments	2,049,800
Gross unrealized appreciation	20,700
Gross unrealized depreciation	119,300
Net unrealized appreciation (depreciation)	(98,600)
Taxable Subsidiary
Income Tax Contingency [Line Items]
Cost of investments	72,500
Gross unrealized appreciation	88,300
Gross unrealized depreciation	14,500
Net unrealized appreciation (depreciation)	$ 73,800
Regular Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	$ 0.58
O 2026 M1 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
O 2026 M2 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
O 2026 M3 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
S 2026 Q4 Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.06
O 2026 M4 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
O 2026 M5 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
O 2026 M6 Tax Year Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.1934
Qualified Dividends
Income Tax Contingency [Line Items]
Dividends cash paid (in usd per share)		$ 0.6686
O 2027 Q1 Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	0.58
S 2027 Q1 Dividends
Income Tax Contingency [Line Items]
Dividends declared (in usd per share)	$ 0.06