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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands | Total | Common Stock | Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Balance, beginning of period at Sep. 30, 2015 | $ 1,955,679 | $ 133,696 | $ 1,643,712 | $ 829,754 | $ 353 | $ (651,836)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 76,821 |  |  | 76,821 |  |
Other comprehensive income (loss) | (8,939) |  |  |  | (8,939) |
Dividends on common stock | (24,735) |  |  | (24,735) |  |
Compensation expense related to common stock options | 600 |  | 600 |  |  |
Proceeds from exercise of common stock options | 5,399 | 250 | 5,149 |  |  |
Restricted stock expense | 2,082 | 146 | 1,936 |  |  |
Treasury stock acquired | (44,447) |  |  |  |  | (44,447)
Balance, end of period at Mar. 31, 2016 | 1,962,460 | 134,092 | 1,651,397 | 881,840 | (8,586) | (696,283)
Balance, beginning of period at Sep. 30, 2016 | 1,975,731 | 134,308 | 1,648,388 | 943,877 | (11,156) | (739,686)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 83,316 |  |  | 83,316 |  |
Other comprehensive income (loss) | 13,435 |  |  |  | 13,435 |
Dividends on common stock | (47,995) |  |  | (47,995) |  |
Proceeds from exercise of common stock options | 6,505 | 282 | 6,223 |  |  |
Restricted stock expense | 4,171 | 110 | 4,061 |  |  |
Exercise of stock warrants | 0 | 124 | (124) |  |  |
Treasury stock acquired | (20,401) |  |  |  |  | (20,401)
Balance, end of period at Mar. 31, 2017 | $ 2,014,762 | $ 134,824 | $ 1,658,548 | $ 979,198 | $ 2,279 | $ (760,087)

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