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Earnings Per Common Share And Share Awards Summary Of Share-Based Award Transactions (Details) - SARs - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2025
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award, SARS, Outstanding [Roll Forward]        
Number of shares, outstanding beginning balance 28 42   42
Number of shares, SARs granted 0     5
Number of shares, SARS exercised (1)     (19)
Number of shares, outstanding ending balance 27     28
Number of shares, exercisable as of March 31, 2025 23      
Number of shares, unvested as of March 31, 2025 4      
Share-based Compensation Arrangement by Share-based Payment Award, SARs, Outstanding, Weighted Average Exercise Price [Roll Forward]        
Weighted average exercise price, outstanding beginning balance $ 154.71 $ 160.83   $ 160.83
Weighted average exercise price, SARs granted 0     160.94
Weighted average exercise price, SARS exercised 188.71     170.21
Weighted average exercise price, outstanding ending balance 152.80     $ 154.71
Weighted average exercise price, exercisable as of March 31, 2025 154.04      
Weighted average exercise price, unvested as of March 31, 2025 $ 144.83      
Average remaining contractual term, outstanding beginning balance 3 years 10 months 9 days 3 years 10 months 24 days 3 years 8 months 8 days  
Average remaining contractual term, outstanding ending balance 3 years 10 months 9 days 3 years 10 months 24 days 3 years 8 months 8 days  
Average remaining contractual term, exercisable as of March 31, 2025 3 years 9 months 21 days      
Average remaining contractual term, unvested as of March 31, 2025 4 years 1 month 24 days      
Aggregate intrinsic value, outstanding beginning balance $ 2,312 $ 428   $ 428
Aggregate intrinsic value, outstanding ending balance 2,355     $ 2,312
Aggregate intrinsic value, exercisable as of March 31, 2025 2,008      
Aggregate intrinsic value, unvested as of March 31, 2025 $ 347