Employee Benefits - Assumptions to Determine Projected Benefit Obligation (Details) |
12 Months Ended | |
|---|---|---|
Jan. 02, 2016 |
Jan. 03, 2015 |
|
| Projected benefit obligation: | ||
| Discount rate | 4.52% | 4.19% |
| Net periodic pension cost | ||
| Discount rate | 4.19% | 5.00% |
| Expected long-term rate of return on plan assets | 7.54% | 7.85% |
| Minimum | ||
| Projected benefit obligation: | ||
| Average rate of increase in future compensation levels | 2.50% | 2.50% |
| Net periodic pension cost | ||
| Average rate of increase in future compensation levels | 2.50% | 2.50% |
| Maximum | ||
| Projected benefit obligation: | ||
| Average rate of increase in future compensation levels | 5.50% | 5.50% |
| Net periodic pension cost | ||
| Average rate of increase in future compensation levels | 5.50% | 5.50% |