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Stock-Based Compensation (Details 5) - $ / shares shares in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Sep. 27, 2015 | Jun. 28, 2015 | Mar. 29, 2015 | Dec. 31, 2014 | Sep. 28, 2014 | Jun. 29, 2014 | Mar. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid | $ 0.17 | $ 0.17 | $ 0.17 | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.13 | $ 0.66 | $ 0.58 | $ 0.50 |
Class A |  |  |  |  |  |  |  |  |  |  |  |
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid |  |  |  |  |  |  |  |  | 0.66 | 0.58 | 0.50 |
Class B |  |  |  |  |  |  |  |  |  |  |  |
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Cash Paid |  |  |  |  |  |  |  |  | $ 0.66 | $ 0.58 | $ 0.50 |
Management Stock Purchase Plan | Restricted stock units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |
RSUs Outstanding |  |  |  |  |  |  |  |  |  |  |  |
Number Outstanding (in shares) | 101 |  |  |  | 80 |  |  |  | 101 | 80 | 132 | 196
Weighted Average Purchase Price (in dollars per share) | $ 36.14 |  |  |  | $ 32.08 |  |  |  | $ 36.14 | $ 32.08 | $ 27.46 | $ 22.88
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Number Vested (in shares) | 25 |  |  |  | 31 |  |  |  | 25 | 31 | 42 |
Weighted Average Purchase Price (in dollars per share) | $ 33.35 |  |  |  | $ 27.96 |  |  |  | $ 33.35 | $ 27.96 | $ 25.30 |
$19.87-$25.15 | Management Stock Purchase Plan | Restricted stock units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |
Information about RSUs outstanding |  |  |  |  |  |  |  |  |  |  |  |
Low end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | 19.87 |  |  |
High end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | $ 25.15 |  |  |
RSUs Outstanding |  |  |  |  |  |  |  |  |  |  |  |
Number Outstanding (in shares) | 1 |  |  |  |  |  |  |  | 1 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 25.15 |  |  |  |  |  |  |  | $ 25.15 |  |  |
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Number Vested (in shares) | 1 |  |  |  |  |  |  |  | 1 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 25.15 |  |  |  |  |  |  |  | $ 25.15 |  |  |
$26.51-$31.63 | Management Stock Purchase Plan | Restricted stock units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |
Information about RSUs outstanding |  |  |  |  |  |  |  |  |  |  |  |
Low end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | 26.51 |  |  |
High end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | $ 31.63 |  |  |
RSUs Outstanding |  |  |  |  |  |  |  |  |  |  |  |
Number Outstanding (in shares) | 26 |  |  |  |  |  |  |  | 26 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 31.43 |  |  |  |  |  |  |  | $ 31.43 |  |  |
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Number Vested (in shares) | 18 |  |  |  |  |  |  |  | 18 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 31.35 |  |  |  |  |  |  |  | $ 31.35 |  |  |
$37.13-$40.27 | Management Stock Purchase Plan | Restricted stock units (RSUs) |  |  |  |  |  |  |  |  |  |  |  |
Information about RSUs outstanding |  |  |  |  |  |  |  |  |  |  |  |
Low end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | 37.13 |  |  |
High end of purchase price range (in dollars per share) |  |  |  |  |  |  |  |  | $ 40.27 |  |  |
RSUs Outstanding |  |  |  |  |  |  |  |  |  |  |  |
Number Outstanding (in shares) | 74 |  |  |  |  |  |  |  | 74 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 37.92 |  |  |  |  |  |  |  | $ 37.92 |  |  |
RSUs Vested |  |  |  |  |  |  |  |  |  |  |  |
Number Vested (in shares) | 6 |  |  |  |  |  |  |  | 6 |  |  |
Weighted Average Purchase Price (in dollars per share) | $ 40.27 |  |  |  |  |  |  |  | $ 40.27 |  |  |

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