Employee Equity Incentive Plans (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 29, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Employee Benefits and Share-based Compensation, Noncash [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restricted Stock Units Estimated Values And Weighted Average Assumptions [Table Text Block] |
We based the weighted average estimated value of RSU and OSU grants on the weighted average assumptions for each period as follows:
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| Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] |
We based the weighted average estimated value of RSU and OSU grants on the weighted average assumptions for each period as follows:
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| Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] |
RSU activity in 2018 was as follows:
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- Definition Restricted Stock Units Estimated Values And Weighted Average Assumptions [Table Text Block] No definition available.
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- References No definition available.
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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