Stock-based Compensation Expense Tables (Tables) |
9 Months Ended | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 28, 2018 | |||||||||||||||||||||||||
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||||||||||||||||||||||||
Schedule Of Share Based Payment Award SARs Valuation Assumptions [Table Text Block] | The Company estimated the fair value of the SARs using the following weighted-average assumptions in the Black-Scholes model:
|