Condensed Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Oct. 02, 2015 |
Sep. 30, 2016 |
Oct. 02, 2015 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Tax expense (benefit) for the change in unrealized gain (loss) on derivative instruments | $ 205 | $ 38 | $ (227) | $ 134 |
| Tax expense for pension plan adjustments | $ 1,213 | $ 961 | $ 3,641 | $ 2,883 |