Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
Fair Value Measurements - Financial Instruments Not Carried at Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value $ 3,010,029 $ 2,346,629
Unamortized issuance costs 6,922 3,572
Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 3,001,030 2,342,067
Estimate of Fair Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 3,010,029 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 604,569 453,663
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 604,569 453,663
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 512,560 482,084
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 512,560 482,084
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 100,000 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 100,000 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 0 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 0 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 684,589 704,819
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 684,589 704,819
November 2025 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 1,700 1,900
Net cumulative increase (decrease) from hedging activities 700 300
November 2025 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 169,019 168,462
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 171,424 170,628
November 2027 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 1,600 1,700
Net cumulative increase (decrease) from hedging activities 1,400 700
November 2027 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 154,733 153,958
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 157,730 156,354
March 2026 Notes | Senior Notes    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Unamortized issuance costs 2,500  
Net cumulative increase (decrease) from hedging activities 3,400  
March 2026 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 276,923 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 279,400 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 2,000  
March 2028 Notes | Senior Notes | Reported Value Measurement    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]    
Debt fair value 124,892 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 126,012 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 373,745 379,081
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 $ 373,745 $ 379,081