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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, 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 | 162,935 |  |  |  | 162,935 |  |
Other comprehensive income (loss) | (15,558) |  |  |  |  | (15,558) |
Dividends on common stock | (46,015) |  |  |  | (46,015) |  |
Dividends on preferred stock | (10,968) |  |  |  | (10,968) |  |
Proceeds from stock-based awards | 1,549 |  | 55 | 1,494 |  |  |
Stock-based compensation expense | 5,316 |  | 213 | 5,103 |  |  |
Treasury stock acquired | (3,212) |  |  |  |  |  | (3,212)
Balance, end of period at Jun. 30, 2022 | 2,220,111 | 300,000 | 136,261 | 1,685,219 | 1,634,563 | 54,227 | (1,590,159)
Balance, beginning of period at Mar. 31, 2022 | 2,191,701 | 300,000 | 136,244 | 1,683,578 | 1,590,483 | 71,478 | (1,590,082)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 63,295 |  |  |  | 63,295 |  |
Other comprehensive income (loss) | (17,251) |  |  |  |  | (17,251) |
Dividends on common stock | (15,559) |  |  |  | (15,559) |  |
Dividends on preferred stock | (3,656) |  |  |  | (3,656) |  |
Proceeds from stock-based awards | 188 |  | 6 | 182 |  |  |
Stock-based compensation expense | 1,470 |  | 11 | 1,459 |  |  |
Treasury stock acquired | (77) |  |  |  |  |  | (77)
Balance, end of period at Jun. 30, 2022 | 2,220,111 | 300,000 | 136,261 | 1,685,219 | 1,634,563 | 54,227 | (1,590,159)
Balance, beginning of period at Sep. 30, 2022 | 2,274,260 | 300,000 | 136,271 | 1,686,975 | 1,688,740 | 52,481 | (1,590,207)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 207,218 |  |  |  | 207,218 |  |
Other comprehensive income (loss) | (5,130) |  |  |  |  | (5,130) |
Dividends on common stock | (47,826) |  |  |  | (47,826) |  |
Dividends on preferred stock | (10,968) |  |  |  | (10,968) |  |
Proceeds from stock-based awards | 1,039 |  | 34 | 1,005 |  |  |
Stock-based compensation expense | 5,923 |  | 153 | (2,393) |  |  | 8,163
Treasury stock acquired | (30,450) |  |  |  |  |  | (30,450)
Balance, end of period at Jun. 30, 2023 | 2,394,066 | 300,000 | 136,458 | 1,685,587 | 1,837,164 | 47,351 | (1,612,494)
Balance, beginning of period at Mar. 31, 2023 | 2,375,117 | 300,000 | 136,413 | 1,683,720 | 1,795,042 | 43,822 | (1,583,880)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 61,775 |  |  |  | 61,775 |  |
Other comprehensive income (loss) | 3,529 |  |  |  |  | 3,529 |
Dividends on common stock | (15,998) |  |  |  | (15,998) |  |
Dividends on preferred stock | (3,655) |  |  |  | (3,655) |  |
Proceeds from stock-based awards | 16 |  | 1 | 15 |  |  |
Stock-based compensation expense | 1,896 |  | 44 | 1,852 |  |  |
Treasury stock acquired | (28,614) |  |  |  |  |  | (28,614)
Balance, end of period at Jun. 30, 2023 | $ 2,394,066 | $ 300,000 | $ 136,458 | $ 1,685,587 | $ 1,837,164 | $ 47,351 | $ (1,612,494)

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