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Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended | 29 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 02, 2016 | Sep. 27, 2015 | Oct. 02, 2016 | Sep. 27, 2015 | Sep. 30, 2015 | Jul. 27, 2015 | Apr. 30, 2013
Net (loss) income |  |  |  |  |  |  |
Net income (loss) | $ 21.9 | $ (25.7) | $ 66.7 | $ 5.2 |  |  |
Shares |  |  |  |  |  |  |
Shares (in shares) | 34,500,000 | 35,000,000 | 34,500,000 | 35,000,000 |  |  |
Per Share Amount |  |  |  |  |  |  |
Net income (in dollars per share) | $ 0.63 | $ (0.73) | $ 1.93 | $ 0.15 |  |  |
Dilutive securities, principally common stock options |  |  |  |  |  |  |
Common stock equivalents (in shares) |  |  |  | 100,000 |  |  |
Net (loss) income |  |  |  |  |  |  |
Net income | $ 21.9 | $ (25.7) | $ 66.7 | $ 5.2 |  |  |
Weighted average number of shares: |  |  |  |  |  |  |
Shares (in shares) | 34,500,000 | 35,000,000 | 34,500,000 | 35,100,000 |  |  |
Per Share Amount |  |  |  |  |  |  |
Net income (in dollars per share) | $ 0.63 | $ (0.73) | $ 1.93 | $ 0.15 |  |  |
Shares repurchased |  |  |  |  |  |  |
Options to purchase shares of Class A common stock |  | 300,000 | 100,000 | 300,000 |  |  |
Total value of shares of the entity's Class A common stock authorized to be repurchased |  |  |  |  |  | $ 100.0 | $ 90.0
Number of shares repurchased | 74,038 | 234,723 | 433,429 | 583,839 |  |  |
Cost of shares repurchased | $ 4.6 | $ 12.5 | $ 22.2 | $ 32.0 |  |  |
April 30, 2013 |  |  |  |  |  |  |
Shares repurchased |  |  |  |  |  |  |
Number of shares repurchased |  | 145,026 |  | 494,142 |  |  |
Cost of shares repurchased |  | $ 7.7 |  | $ 27.2 | $ 90.0 |  |
July 27, 2015 |  |  |  |  |  |  |
Shares repurchased |  |  |  |  |  |  |
Number of shares repurchased | 74,038 | 89,697 | 433,429 | 89,697 |  |  |
Cost of shares repurchased | $ 4.6 | $ 4.8 | $ 22.2 | $ 4.8 |  |  |
Remaining authorized repurchase amount | $ 60.5 |  | $ 60.5 |  |  |  |

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