v3.25.1
Statements of Capital (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance $ 4,234,666 $ 3,743,897
Comprehensive income 75,151 196,434
Proceeds from issuance of capital stock 31,553 71,450
Redemption/repurchase of capital stock (103,397)  
Cash dividends on capital stock (51,210) (44,196)
Ending Balance $ 4,186,763 $ 3,967,585
Capital Stock | Class B    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance (in shares) 25,554 22,852
Beginning Balance $ 2,555,394 $ 2,285,258
Proceeds from issuance of capital stock (in shares) 316 715
Proceeds from issuance of capital stock $ 31,553 $ 71,450
Redemption/repurchase of capital stock (in shares) (1,034)  
Redemption/repurchase of capital stock $ (103,397)  
Ending Balance (in shares) 24,836 23,567
Ending Balance $ 2,483,550 $ 2,356,708
Retained Earnings Total    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 1,684,112 1,532,171
Comprehensive income 74,522 94,874
Cash dividends on capital stock (51,210) (44,196)
Ending Balance 1,707,424 1,582,849
Retained Earnings, Unrestricted    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 1,217,750 1,134,132
Comprehensive income 59,618 75,899
Cash dividends on capital stock (51,210) (44,196)
Ending Balance 1,226,158 1,165,835
Retained Earnings, Restricted    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance 466,362 398,039
Comprehensive income 14,904 18,975
Cash dividends on capital stock 0 0
Ending Balance 481,266 417,014
Accumulated Other Comprehensive Income (Loss)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning Balance (4,840) (73,532)
Comprehensive income 629 101,560
Ending Balance $ (4,211) $ 28,028