|
Note 7. Equity Incentive Plan and Stock-based Compensation (Details) - Total Recorded Stock-based Compensation Expense (USD $) In Thousands, unless otherwise specified
|
12 Months Ended |
|
Dec. 28, 2014
|
Dec. 29, 2013
|
Dec. 30, 2012
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
|
|
|
|
| Stock-based compensation expense after income taxes (1) |
$ 40,266 |
[1] |
$ 30,687 |
[1] |
$ 34,363 |
[1] |
| Cost of Sales [Member] |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
|
|
|
|
| Stock-based compensation expense before income taxes |
7,961 |
|
5,900 |
|
6,790 |
|
| Research and Development Expense [Member] |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
|
|
|
|
| Stock-based compensation expense before income taxes |
10,604 |
|
9,340 |
|
8,696 |
|
| Selling, General and Administrative Expenses [Member] |
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
|
|
|
|
|
|
| Stock-based compensation expense before income taxes |
$ 21,701 |
|
$ 15,447 |
|
$ 18,877 |
|
|
|
|