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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock [Member] | Capital In Excess Of Par Value [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Deferred Compensation [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance (in Shares) at Sep. 30, 2015 |  | 79,080,000 |  |  | 30,737,000 |  |
Balance at Sep. 30, 2015 | $ 430,525 | $ 19,770 | $ 518,485 | $ 454,548 | $ (436,559) | $ (91,188) | $ (34,531)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 30,010 |  |  | 30,010 |  |  |
Payments of Ordinary Dividends, Common Stock | 8,798 |  |  | (8,798) |  |  |
Dividends | (8,798) |  |  |  |  |  |
Amortization of deferred compensation | 2,853 |  |  |  |  |  | 2,853
Common stock issued (in Shares) |  | 41,000 |  |  |  |  |
Common stock issued |  | $ 10 | (10) |  |  |  |
Common stock acquired (in Shares) |  |  |  |  | 4,060,000 |  |
Common stock acquired | (65,307) |  |  |  | $ (65,307) |  |
Equity awards granted, net (in Shares) |  | 845,000 |  |  |  |  |
Equity awards granted, net | 264 | $ 212 | 52 |  |  |  |
ESOP allocation of common stock | 1,317 |  | 1,317 |  |  |  |
Stock-based compensation | 10,136 |  | 10,136 |  |  |  |
Other comprehensive income, net of tax | 9,947 |  |  |  |  | 9,947 |
Balance (in Shares) at Sep. 30, 2016 |  | 79,966,000 |  |  | 34,797,000 |  |
Balance at Sep. 30, 2016 | 410,947 | $ 19,992 | 529,980 | 475,760 | $ (501,866) | (81,241) | (31,678)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 14,912 |  |  | 14,912 |  |  |
Payments of Ordinary Dividends, Common Stock | 10,325 |  |  |  |  |  |
Dividends | (10,325) |  |  | (10,325) |  |  |
Tax effect from exercise/vesting of equity awards, net | (13,738) |  | (97) |  | $ (13,641) |  |
Tax effect from exercise/vesting of equity awards, net (in shares) |  |  |  |  | 586,000 |  |
Amortization of deferred compensation | 3,510 |  |  |  |  |  | 3,510
Common stock issued (in Shares) |  | 3,000 |  |  |  |  |
Common stock issued | 22 |  | 22 |  |  |  |
Common stock acquired (in Shares) |  |  |  |  | 129,000 |  |
Common stock acquired | (2,201) |  |  |  | $ (2,201) |  |
Equity awards granted, net (in Shares) |  | 694,000 |  |  |  |  |
Equity awards granted, net |  | $ 174 | (174) |  |  |  |
Premium on settlement of convertible debt | (73,855) |  | (73,855) |  |  |  |
Issuance of treasury stock in settlement of convertible debt | 48,858 |  | 20,375 |  | $ 28,483 |  |
Issuance of treasury stock in settlement of convertible debt (in shares) |  |  |  |  | (1,955,000) |  |
ESOP purchase of common stock | (10,908) |  |  |  |  |  | (10,908)
ESOP allocation of common stock | 2,736 |  | 2,736 |  |  |  |
Stock-based compensation | 8,090 |  | 8,090 |  |  |  |
Other comprehensive income, net of tax | 20,760 |  |  |  |  | 20,760 |
Balance (in Shares) at Sep. 30, 2017 |  | 80,663,000 |  |  | 33,557,000 |  |
Balance at Sep. 30, 2017 | 398,808 | $ 20,166 | 487,077 | 480,347 | $ (489,225) | (60,481) | (39,076)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 125,678 |  |  | 125,678 |  |  |
Payments of Ordinary Dividends, Common Stock | 49,797 |  |  |  |  |  |
Dividends | $ (55,502) |  |  | (55,502) |  |  |
Tax effect from exercise/vesting of equity awards, net (in shares) | 2,088,739 |  |  |  |  |  |
Shares paid for tax withholding for share based compensation (in Shares) | 199,978 |  |  |  | 200,000 |  |
Shares withheld on employee taxes on vested equity awards | $ (4,495) |  |  |  | $ (4,495) |  |
Amortization of deferred compensation | 8,110 |  |  |  |  |  | 8,110
Common stock acquired (in Shares) |  |  |  |  | 2,089,000 |  |
Common stock acquired | (41,110) |  |  |  | $ (41,110) |  |
Equity awards granted, net (in Shares) |  | 857,000 |  |  |  |  |
Equity awards granted, net |  | $ 214 | (214) |  |  |  |
ESOP allocation of common stock | 4,756 |  | 4,756 |  |  |  |
Stock-based compensation | 10,078 |  | 10,078 |  |  |  |
Stock-based consideration | 1,699 |  | 1,699 |  |  |  |
Other comprehensive income, net of tax | 26,369 |  |  |  |  | 26,369 |
Balance (in Shares) at Sep. 30, 2018 |  | 81,520,000 |  |  | 35,846,000 |  |
Balance at Sep. 30, 2018 | $ 474,391 | $ 20,380 | $ 503,396 | $ 550,523 | $ (534,830) | $ (34,112) | $ (30,966)

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