v3.25.4
Earnings Per Share Calculation Basic Diluted Earnings Per Share Voting Non Voting Common Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Earnings Per Share Diluted Other Disclosures [Abstract]        
Net earnings available to common shareholders $ 36,968 $ 67,166 $ 210,913 $ 449,381
Undistributed earnings available to common stockholders $ 45,792 $ 58,342 $ 184,442 $ 422,910
Common Stock [Member]        
Earnings Per Share Diluted Other Disclosures [Abstract]        
Weighted Average Number Of Shares Outstanding Basic 19,607,788 19,607,788 19,607,788 19,607,788
Percent Weighted Average Shares Outstanding Common Stock 10.00% 10.00% 10.00% 10.00%
Non-Voting Common Stock dividends declared $ (8,824) $ (8,824)    
Undistributed earnings available to common stockholders $ 4,579 $ 5,834 $ 18,444 $ 42,291
Undistributed earnings per share, common stock $ 0.23 $ 0.3 $ 0.94 $ 2.16
Income Loss From Continuing Operations Per Basic Share, Total $ 0.23 $ 0.3 $ 0.94 $ 2.16
Nonvoting Common Stock [Member]        
Earnings Per Share Diluted Other Disclosures [Abstract]        
Weighted Average Number Of Shares Outstanding Basic 176,470,092 176,470,092 176,470,092 176,470,092
Percent Weighted Average Shares Outstanding Common Stock 90.00% 90.00% 90.00% 90.00%
Non-Voting Common Stock dividends declared $ (8,824) $ (8,824) $ (26,471) $ (26,471)
Undistributed earnings available to common stockholders $ 41,213 $ 52,508    
Undistributed earnings available to common stockholders, participating securities     $ 165,998 $ 380,619
Undistributed earnings per share, common stock $ 0.23 $ 0.3 $ 0.94 $ 2.16
Dividends declared per share, distributed 0.05 0.05 0.15 0.15
Income Loss From Continuing Operations Per Basic Share, Total $ 0.18 $ 0.35 $ 1.09 $ 2.31
Nonvoting Common Stock [Member] | Common Stock [Member]        
Earnings Per Share Diluted Other Disclosures [Abstract]        
Weighted Average Number Of Shares Outstanding Basic 196,077,880 196,077,880 196,077,880 196,077,880