CONSOLIDATED STATEMENTS OF ASSETS AND LIABILITIES - USD ($)		Mar. 31, 2025	Dec. 31, 2024
Assets
Investments at fair value		$ 3,188,621,000	$ 3,014,416,000
Cash and cash equivalents		83,703,000	74,357,000
Foreign currencies (cost - $1,367 and $1,487, respectively)		1,330,000	1,429,000
Receivable for investments sold		32,151,000	57,195,000
Interest receivable		25,346,000	19,289,000
Dividends receivable		459,000	709,000
Deferred financing costs		22,267,000	23,555,000
Unrealized appreciation on foreign currency forward contracts		$ 33,000	$ 0
Derivative Asset, Type [Extensible Enumeration]		Foreign Exchange Forward [Member]	Foreign Exchange Forward [Member]
Prepaid expenses and other assets		$ 1,789,000	$ 0
Total Assets		3,355,699,000	3,190,950,000
Liabilities
Debt		1,935,242,000	1,751,621,000
Payable for investments purchased		2,091,000	4,190,000
Management fees payable		6,061,000	6,247,000
Performance-based incentive fees payable		6,433,000	5,336,000
Interest payable		9,403,000	12,813,000
Accrued administrative services expense		0	60,000
Unrealized depreciation on foreign currency forward contracts		$ 0	$ 0
Derivative Liability, Type [Extensible Enumeration]		Foreign Exchange Forward [Member]	Foreign Exchange Forward [Member]
Other liabilities and accrued expenses		$ 3,209,000	$ 6,037,000
Total Liabilities		1,962,439,000	1,786,304,000
Commitments and contingencies (Note 9)
Net Assets		1,393,260,000	1,404,646,000
Net Assets
Common stock, $0.001 par value (130,000,000 shares authorized; 93,303,622 and 93,780,278 shares issued and outstanding, respectively)		94,000	94,000
Capital in excess of par value		2,652,015,000	2,658,090,000
Accumulated under-distributed (over-distributed) earnings		(1,258,849,000)	(1,253,538,000)
Net Assets		$ 1,393,260,000	$ 1,404,646,000
Net Asset Value Per Share	[1]	$ 14.93	$ 14.98
Non-controlled/Non-affiliated Investments
Assets
Investments at fair value		$ 2,756,760,000	$ 2,605,329,000
Non-controlled/Affiliated Investments
Assets
Investments at fair value		113,290,000	84,334,000
Controlled Investments
Assets
Investments at fair value		$ 318,571,000	$ 324,753,000

[1] Totals may not foot due to rounding.