Shareholders' Equity Repurchase of Common Stock (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 30, 2017 |
Dec. 31, 2016 |
Jan. 02, 2016 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Stock Repurchase Program, Authorized Amount | $ 500,000 | ||
| Amount repurchased under Board-approved share repurchase program | 150,000 | $ 125,000 | $ 98,446 |
| Amount repurchased in connection with the vesting of employee restricted stock grants | 5,245 | 1,693 | 1,755 |
| Total amount repurchased | 155,245 | $ 126,693 | $ 100,201 |
| Remaining Authorization Stock Purchase Plan | $ 465,000 | ||