Quarterly report [Sections 13 or 15(d)]

Debt, Net - Fair Value of Debt (Details)

v3.25.1
Debt, Net - Fair Value of Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Carrying Amount    
Carrying amount and estimated fair value of debt    
Long-term debt $ 2,412,670 $ 2,391,755
Carrying Amount | Unsecured Senior Notes    
Carrying amount and estimated fair value of debt    
Long-term debt 2,123,523 2,122,270
Carrying Amount | Other fixed-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 37,068 37,381
Carrying Amount | Variable-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 252,079 232,104
Estimated Fair Value    
Carrying amount and estimated fair value of debt    
Long-term debt 2,252,279 2,215,514
Estimated Fair Value | Unsecured Senior Notes    
Carrying amount and estimated fair value of debt    
Long-term debt 1,964,861 1,946,905
Estimated Fair Value | Other fixed-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt 35,654 35,841
Estimated Fair Value | Variable-rate debt    
Carrying amount and estimated fair value of debt    
Long-term debt $ 251,764 $ 232,768