Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Financial Instruments Not Carried at Fair Value (Details)

v3.23.2
Fair Value Measurements - Financial Instruments Not Carried at Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value $ 3,147,728 $ 2,346,629
Unamortized issuance costs 6,409 3,572
Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 3,137,808 2,342,067
Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 3,147,728 2,346,629
HLEND A Funding Facility | Line of Credit | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 604,995 453,663
HLEND A Funding Facility | Line of Credit | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 604,995 453,663
HLEND B Funding Facility | Line of Credit | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 513,796 482,084
HLEND B Funding Facility | Line of Credit | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 513,796 482,084
HLEND C Funding Facility | Line of Credit | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 200,000 0
HLEND C Funding Facility | Line of Credit | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 200,000 0
HLEND D Funding Facility | Line of Credit | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 187,500 0
HLEND D Funding Facility | Line of Credit | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 187,500 0
Senior Secured Revolving Credit Facility | Line of Credit | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 760,270 704,819
Senior Secured Revolving Credit Facility | Line of Credit | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 760,270 704,819
November 2025 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 1,500 1,900
Net cumulative increase (decrease) from hedging activities (900) 300
November 2025 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 167,549 168,462
November 2025 Notes | Senior Notes | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 169,492 170,628
November 2027 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 1,500 1,700
Net cumulative increase (decrease) from hedging activities (400) 700
November 2027 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 153,022 153,958
November 2027 Notes | Senior Notes | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 155,237 156,354
March 2026 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 2,300  
Net cumulative increase (decrease) from hedging activities (2,400)  
March 2026 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 271,339 0
March 2026 Notes | Senior Notes | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 275,063 0
March 2028 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 1,100  
Net cumulative increase (decrease) from hedging activities (1,300)  
March 2028 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 121,637 0
March 2028 Notes | Senior Notes | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 123,675 0
Short Term Financing Transactions | Securities Sold under Agreements to Repurchase | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 157,700 379,081
Short Term Financing Transactions | Securities Sold under Agreements to Repurchase | Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value $ 157,700 $ 379,081