Quarterly report pursuant to Section 13 or 15(d)

Debt, Net - Fair Value of Debt (Details)

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Debt, Net - Fair Value of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Carrying Amount    
Carrying amount and estimated fair value of debt    
Long-term debt $ 2,416,873 $ 2,416,287
Carrying Amount | Unsecured Senior Notes    
Carrying amount and estimated fair value of debt    
Long-term debt 2,118,569 2,117,358
Carrying Amount | Other fixed-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 66,139 66,744
Carrying Amount | Variable-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 232,165 232,185
Estimated Fair Value    
Carrying amount and estimated fair value of debt    
Long-term debt 2,175,953 2,172,573
Estimated Fair Value | Unsecured Senior Notes    
Carrying amount and estimated fair value of debt    
Long-term debt 1,880,835 1,876,611
Estimated Fair Value | Other fixed-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 63,013 63,692
Estimated Fair Value | Variable-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt $ 232,105 $ 232,270