|
Cash, Cash Equivalents and Investments (Details) (USD $)
In Thousands, unless otherwise specified |
Jun. 28, 2014
|
Dec. 28, 2013
|
Jun. 29, 2013
|
Dec. 29, 2012
|
|---|---|---|---|---|
| Cash, Cash Equivalents and Investments [Abstract] | ||||
| Cash and cash equivalents | $ 557,416 | $ 536,260 | $ 577,233 | $ 726,357 |
| Short-term investments | 97,910 | 96,788 | ||
| Cash, cash equivalents, and short-term investments | $ 655,326 | $ 633,048 |