v3.26.1
Basis of Presentation and Significant Accounting Policies - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments $ 1,334,149 $ 1,280,232 $ 1,233,012 $ 1,183,906 $ 1,100,035 $ 1,080,404
Accumulated Other Comprehensive Income (Loss)            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments (51,334) $ (31,411) (19,373) $ (23,385) $ (43,314) $ (48,211)
Currency translation adjustments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments (36,076)   (2,020)      
Net unrealized gain on derivative financial instruments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments 510   6      
Unrecognized prior service cost on benefit obligations            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments (15,674)   (17,265)      
Net unrealized loss on available-for-sale investments            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Net gains on derivative financial instruments $ (94)   $ (94)