Other Employee Benefit Plans (Details) (Narrative) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 26, 2015 |
Dec. 27, 2014 |
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| Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] | |||
| Maximum allowed percentage of employee's pre-tax salary contributed to the 401(k) plan | 100.00% | ||
| Employer matching contribution, percent of match | 75.00% | ||
| Employee contribution, percent of gross pay subject to match | 6.00% | ||
| Amount of annual maximum allowed employer matching contributions per employee | $ 11,925 | $ 11,925 | $ 11,700 |
| Amount of the Company's contributions to the 401(k) plan | $ 16,000,000 | $ 16,000,000 | $ 18,000,000 |
| X | ||||||||||
- Definition Amount of annual maximum allowed employer matching contributions per employee under the 401(k) plan. No definition available.
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| X | ||||||||||
- References No definition available.
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- Definition The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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| X | ||||||||||
- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
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| X | ||||||||||
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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