Debt - Additional Information (Details) € in Millions, £ in Millions, kr in Millions							3 Months Ended	6 Months Ended
	Jul. 03, 2024	Jun. 10, 2024 USD ($)	Apr. 01, 2024 USD ($) Swap	Mar. 04, 2024 USD ($)	Feb. 08, 2024 USD ($)	Jan. 09, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 GBP (£)	Jun. 30, 2024 EUR (€)	Jun. 30, 2024 SEK (kr)	Jun. 27, 2024 USD ($)	May 23, 2024 USD ($)	Apr. 08, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 GBP (£)	Dec. 31, 2023 EUR (€)	Dec. 01, 2023 USD ($)	Jul. 27, 2023 USD ($)	Jun. 30, 2023 USD ($)	Apr. 27, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 28, 2023 USD ($)	Feb. 28, 2023 USD ($)	Jan. 27, 2023 USD ($)	Jan. 18, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 01, 2022 USD ($)
Debt Instrument [Line Items]
Asset coverage percentage							204.70%	204.70%	204.70%	204.70%	204.70%					245.60%	245.60%	245.60%
Aggregate principal amount							$ 3,675,000,000	$ 3,675,000,000								$ 2,225,000,000
Line of credit facility maximum borrowing capacity																				$ 725,000,000
Shareholders' equity							2,749,507,000	2,749,507,000							$ 2,380,563,000	1,817,067,000					$ 906,467,000		$ 812,319,000					$ 546,711,000
2029 Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 150,000,000		$ 600,000,000			$ 750,000,000	$ 750,000,000
Debt instrument, interest rate				6.50%			6.50%	6.50%	6.50%	6.50%	6.50%
Debt instrument, maturity date		Mar. 11, 2029		Mar. 11, 2029
Proceeds from issuance of debt, net of underwriting discount and offering costs		$ 147,800,000		$ 586,000,000
2029 Notes | SOFR
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis								SOFR
2023 Notes, 2024 Notes, 2026 Notes and 2028 Notes
Debt Instrument [Line Items]
Proceeds from settlements of interest rate swaps excluding upfront fees							$ 10,000,000	$ 11,500,000
Payments for settlements of interest rate swaps excluding upfront fees							$ 12,300,000	$ 14,100,000
Interest Rate Swap | 2029 Notes
Debt Instrument [Line Items]
Number of derivative instruments held | Swap			2
Interest Rate Swap One
Debt Instrument [Line Items]
Derivative maturity date							Mar. 11, 2029	Mar. 11, 2029
Interest Rate Swap One | 2029 Notes
Debt Instrument [Line Items]
Derivative maturity date			Mar. 11, 2029
Notional amount of interest rate swap			$ 600,000,000
Interest Rate Swap Two
Debt Instrument [Line Items]
Derivative maturity date							Mar. 11, 2029	Mar. 11, 2029
Interest Rate Swap Two | 2029 Notes
Debt Instrument [Line Items]
Derivative maturity date			Mar. 11, 2029
Notional amount of interest rate swap			$ 150,000,000
Weighted Average | 2029 Notes | SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								2.45%
Subscription Facility
Debt Instrument [Line Items]
Aggregate principal amount							$ 1,500,000,000	$ 1,500,000,000								1,500,000,000
Line of credit facility maximum borrowing capacity																			$ 1,500,000,000			$ 1,350,000,000		$ 1,300,000,000		$ 850,000,000	$ 800,000,000	$ 700,000,000	$ 400,000,000
Line of credit facility, stated maturity date	Aug. 29, 2025							Aug. 30, 2024
Optional extension period of maturity date of line of credit facility								364 days
Line of credit, outstanding amount									£ 10.3	€ 10.3							£ 10.3	€ 13.4
Issuance of letters of credit							$ 0	$ 0								0
Line of credit facility, undrawn amount percentage								0.25%
Subscription Facility | Adjusted Daily SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								1.95%
Subscription Facility | Adjusted Term SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								1.95%
Subscription Facility | Prime Rate
Debt Instrument [Line Items]
Debt instrument, interest rate							0.95%	0.95%	0.95%	0.95%	0.95%
Subscription Facility | Federal Funds Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								0.50%
Subscription Facility | Eurocurrency Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								1.95%
Subscription Facility | SONIA
Debt Instrument [Line Items]
Interest amount								0.0326%
Debt Instrument, basis spread on variable rate								1.95%
Subscription Facility | Minimum | SOFR
Debt Instrument [Line Items]
Interest amount								0.10%
Subscription Facility | Maximum | SOFR
Debt Instrument [Line Items]
Interest amount								0.25%
Subscription Facility | Maximum | Adjusted Daily SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate								1.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate principal amount							$ 1,425,000,000	$ 1,425,000,000								725,000,000
Line of credit facility maximum borrowing capacity					$ 1,000,000,000	$ 600,000,000						$ 1,425,000,000	$ 1,375,000,000	$ 1,200,000,000											$ 700,000,000
Line of credit facility maximum borrowing capacity under certain circumstances						$ 1,000,000,000						$ 1,750,000,000
Line of credit facility, stated maturity date					Feb. 08, 2029
Line of credit, outstanding amount									£ 141.2	€ 368.2	kr 78.1						£ 68.7	€ 95.7
Issuance of letters of credit							5,900,000	5,900,000								$ 5,500,000
Line of credit facility, undrawn amount percentage						0.375%
Shareholders' equity							$ 1,100,000	$ 1,100,000
Percentage of net proceeds of sale of equity interests								25.00%
Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Asset coverage ratio							1	1	1	1	1
Revolving Credit Facility | Minimum | Adjusted Term SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						1.75%
Revolving Credit Facility | Minimum | Alternative Base Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						1.75%
Revolving Credit Facility | Minimum | Specified Relevant Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						1.75%
Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Asset coverage ratio							1.5	1.5	1.5	1.5	1.5
Revolving Credit Facility | Maximum | Adjusted Term SOFR
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						2.00%
Revolving Credit Facility | Maximum | Alternative Base Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						2.00%
Revolving Credit Facility | Maximum | Specified Relevant Rate
Debt Instrument [Line Items]
Debt Instrument, basis spread on variable rate						2.00%
Letter of Credit
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity							$ 400,000,000	$ 400,000,000
Letter of Credit | Maximum
Debt Instrument [Line Items]
Percentage of commitment fee								10.00%
Incremental Term Loan
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity													$ 100,000,000