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Consolidated Statements of Shareholders’ Equity - USD ($) $ in Millions | Total | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member]
--- | --- | --- | --- | --- | --- | ---
Balances at beginning of period at Sep. 30, 2015 | $ 397.1 | $ 0.2 | $ (26.8) | $ 240.8 | $ 200.4 | $ (17.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 54.7 |  |  |  | 54.7 |
Other comprehensive loss | (7.1) |  |  |  |  | (7.1)
Excercise of stock options | 3.5 |  |  | 3.5 |  |
Share-based compensation | 5.1 |  |  | 5.1 |  |
Repurchase of stock | (19.5) |  | (19.5) |  |  |
Repurchase of stock - adjustments to APIC |  |  |  | 0.0 |  |
Balances at end of period at Sep. 30, 2016 | 433.8 | 0.2 | (46.3) | 249.4 | 255.1 | (24.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 6.4 |  |  |  | 6.4 |
Other comprehensive loss | 0.1 |  |  |  |  | 0.1
Excercise of stock options | 3.3 |  |  | 3.3 |  |
Share-based compensation | 6.3 |  |  | 6.3 |  |
Balances at end of period at Sep. 30, 2017 | 449.9 | 0.2 | (46.3) | 259.0 | 261.5 | (24.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 55.5 |  |  |  | 55.5 |
Other comprehensive loss | (8.6) |  |  |  |  | (8.6)
Excercise of stock options | 1.9 |  |  | 1.9 |  |
Share-based compensation | 6.6 |  |  | 6.6 |  |
Balances at end of period at Sep. 30, 2018 | $ 505.3 | $ 0.2 | $ (46.3) | $ 267.5 | $ 317.0 | $ (33.1)

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