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Stock Repurchase Program Stock Repurchase Program - (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016 | Sep. 11, 2018 | Sep. 01, 2015
Class of Stock [Line Items] |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 3,100 |  |  |  |
Shares repurchased | 196,000 | 804,000 | 1,496,000 |  |
Average cost per share | $ 84.12 | $ 84.90 | $ 42.39 |  |
Value of shares repurchased | $ 16,490 | $ 68,260 | $ 63,402 |  |
2013 Repurchase Program [Member] | Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  |  |  | 5,000,000
2018 Repurchase Program [Member] | Common Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  |  | 5,000,000.0 |
Treasury Stock |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Shares repurchased | 196,000 | 804,000 | 1,496,000 |  |
Value of shares repurchased | $ 16,490 | $ 68,260 | $ 63,403 |  |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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