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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Preferred Stock
Common Stock
Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Treasury Stock
Balance, beginning of period at Sep. 30, 2020 $ 2,014,133 $ 0 $ 135,727 $ 1,678,843 $ 1,420,906 $ 16,953 $ (1,238,296)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 38,951       38,951    
Other comprehensive income (loss) 24,482         24,482  
Dividends on common stock (16,577)       (16,577)    
Proceeds from stock-based awards 30   2 28      
Stock-based compensation expense 1,449   209 1,240      
Treasury stock acquired (701)           (701)
Balance, end of period at Dec. 31, 2020 2,061,767 0 135,938 1,680,111 1,443,280 41,435 (1,238,997)
Balance, beginning of period at Sep. 30, 2021 2,126,064 300,000 135,993 1,678,622 1,528,611 69,785 (1,586,947)
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income 50,281       50,281    
Other comprehensive income (loss) (7,909)         (7,909)  
Dividends on common stock (14,899)       (14,899)    
Dividends on preferred stock (3,656)            
Proceeds from stock-based awards 828   30 798      
Stock-based compensation expense 1,390   173 1,217      
Treasury stock acquired (2,973)           (2,973)
Balance, end of period at Dec. 31, 2021 $ 2,149,126 $ 300,000 $ 136,196 $ 1,680,637 $ 1,560,337 $ 61,876 $ (1,589,920)