Quarterly report [Sections 13 or 15(d)]

FINANCIAL STATEMENT COMPONENTS - Accumulated Other Comprehensive Income (Loss) (Details)

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FINANCIAL STATEMENT COMPONENTS - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance $ 5,465,731 $ 4,985,071 $ 4,692,453 $ 4,004,739 $ 3,584,549 $ 3,559,714 $ 3,368,328
Ending balance 5,830,495 5,465,731 4,985,071 4,692,453 4,004,739 3,584,549 3,559,714
Accumulated Other Comprehensive Income (Loss)              
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance 960 671 1,201 (42,633) (46,386) (25,504) (49,075)
Ending balance (31,980) $ 960 671 1,201 $ (42,633) $ (46,386) $ (25,504)
Currency Translation Adjustments              
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance     (57,277)        
Ending balance (65,859)     (57,277)      
Unrealized Gains (Losses) on Available-for-Sale Securities              
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance     5,792        
Ending balance (848)     5,792      
Unrealized Gains (Losses) on Derivatives              
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance     64,798        
Ending balance 46,167     64,798      
Unrealized Gains (Losses) on Defined Benefit Plans              
AOCI Attributable to Parent, Net of Tax [Roll Forward]              
Beginning balance     $ (12,112)        
Ending balance $ (11,440)     $ (12,112)