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Consolidated Statements of Shareholders' Equity - USD ($) | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income | Treasury Stock | Retained Earnings | Non-Controlling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at May. 02, 2015 |  | 39,702,036 |  |  |  |  |
Ending Balance at Apr. 30, 2016 | $ 470,100,000 | $ 19,100,000 | $ 112,300,000 | $ (8,400,000) | $ (11,500,000) | $ 358,600,000 | $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Earned portion of restricted stock awards (in shares) |  | 430,245 |  |  |  |  |
Earned Portion of Restricted Stock Awards | 100,000 | $ 100,000 |  |  |  |  |
Stock Award and Stock Option Amortization Expense | 7,400,000 |  | 7,400,000 |  | 0 |  |
Exercise of options (in shares) |  | 47,002 |  |  |  |  |
Exercise of Options | $ (7,100,000) | $ (100,000) | (500,000) |  |  | (7,700,000) |
Purchase of common stock (in shares) | (1,997,298) | (1,997,298) |  |  |  |  |
Purchase of Common Stock | $ (62,300,000) | $ (1,000,000) |  |  |  | (61,300,000) |
Tax Benefit from Stock Option Exercises | 2,200,000 |  | 2,200,000 |  |  |  |
Foreign Currency Translation Adjustments | (300,000) |  |  | (100,000) |  |  | (200,000)
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest |  |  |  |  |  | 0 |
Net Income | 84,600,000 |  |  |  |  | 84,600,000 |
Cash Dividends on Common Stock | (13,500,000) |  |  |  |  | (13,500,000) |
Ending Balance (in shares) at Apr. 30, 2016 |  | 38,181,985 |  |  |  |  |
Beginning Balance at May. 02, 2015 | 459,000,000 | $ 19,900,000 | 102,200,000 | (8,300,000) | (11,500,000) | 356,500,000 | 200,000
Ending Balance at Apr. 29, 2017 | 541,100,000 | $ 19,100,000 | 132,200,000 | (25,700,000) | (11,500,000) | 427,000,000 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Earned portion of restricted stock awards (in shares) |  | 146,192 |  |  |  |  |
Earned Portion of Restricted Stock Awards | (1,100,000) | $ 100,000 |  |  |  | (1,200,000) |
Stock Award and Stock Option Amortization Expense | 12,400,000 |  | 12,400,000 |  |  |  |
Exercise of options (in shares) |  | 147,829 |  |  |  |  |
Exercise of Options | $ (2,700,000) | $ (100,000) | (2,600,000) |  |  | 0 |
Purchase of common stock (in shares) | (280,168) | (342,081) |  |  |  |  |
Purchase of Common Stock | $ (9,800,000) | $ (200,000) |  |  |  | (9,600,000) |
Tax Benefit from Stock Option Exercises | 4,900,000 |  | 4,900,000 |  |  |  |
Foreign Currency Translation Adjustments | (17,300,000) |  |  | (17,300,000) |  |  | 0
Net Income | 92,900,000 |  |  |  |  | 92,900,000 |
Cash Dividends on Common Stock | (13,700,000) |  |  |  |  | (13,700,000) |
Ending Balance (in shares) at Apr. 29, 2017 |  | 38,133,925 |  |  |  |  |
Ending Balance at Apr. 28, 2018 | 630,000,000 | $ 19,100,000 | 136,500,000 | 13,900,000 | $ (11,500,000) | 472,000,000 | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Earned portion of restricted stock awards (in shares) |  | 51,095 |  |  |  |  |
Earned Portion of Restricted Stock Awards | (200,000) | $ 0 |  |  |  | (200,000) |
Stock Award and Stock Option Amortization Expense | 4,000,000 |  | 4,000,000 |  |  |  |
Exercise of options (in shares) |  | 13,333 |  |  |  |  |
Exercise of Options | $ (300,000) | $ 0 | $ (300,000) |  |  | 0 |
Purchase of common stock (in shares) | 0 |  |  |  |  |  |
Foreign Currency Translation Adjustments | $ 39,600,000 |  |  | $ 39,600,000 |  |  | $ 0
Net Income | 57,200,000 |  |  |  |  | 57,200,000 |
Cash Dividends on Common Stock | $ (14,700,000) |  |  |  |  | $ (14,700,000) |
Ending Balance (in shares) at Apr. 28, 2018 |  | 38,198,353 |  |  |  |  |

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