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Stock Incentive Plans | 12 Months Ended
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Dec. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Incentive Plans | Stock Incentive Plans In May 2017, the Company’s stockholders approved the 2017 Performance Incentive Plan (the “2017 Stock Plan”). Following the date of approval, all grants are made under the 2017 Stock Plan and no new awards may be granted under the Second Amended and Restated 2007 Performance Plan (the “2007 Stock Plan”). The 2017 Stock Plan authorizes the issuance of stock options, stock appreciation rights (SARs), and other forms of awards granted or denominated in the Company common stock or unit of the Company's common stock, as well as cash performance awards pursuant to the plan. Persons eligible to receive awards under the 2017 Stock Plan include officers, employees, directors, consultants, and other service providers or any affiliate of the Company. The maximum number of shares of the Company’s common stock that may be issued or transferred pursuant to awards under the 2017 Stock Plan is 630,182 shares. Vesting of the awards under the 2017 Stock Plan is determined at the date of grant by the plan administrator. Each award granted under the 2017 Stock Plan and 2007 Stock Plan fully vests, becomes exercisable and/or payable, as applicable, upon a change in control event. However, unless the individual award agreement provides otherwise, with respect to executive and certain other high level officers, upon the occurrence of a change in control, no award will vest unless such officers’ employment with the Company is terminated by the Company without cause during the two-year period following such change in control event. Each award expires on such date as shall be determined at the date of grant; however, the maximum term of options, SARs, and other rights to acquire common stock under the plan is ten years after the initial date of the award, subject to provisions for further deferred payment in certain circumstances. Vesting of awards under these plans were generally time based over a period of one to four years. As of December 30, 2018, 374,019 options to acquire the Company’s common stock remained outstanding under the 2007 Stock Plan. Total stock-based compensation costs recognized in 2018, 2017, and 2016 were $4.0 million, $4.8 million, and $4.5 million, with related income tax benefits of $0.5 million, $1.5 million, and $0.4 million. As of December 30, 2018, there was $4.8 million of total unrecognized compensation cost, excluding estimated forfeitures, which is expected to be recognized over the weighted average remaining vesting period of approximately 2.1 years for stock options, 1.6 years for the restricted stock units, and 1.5 years for the performance stock units. Stock Options The tables below summarize the status of the Company’s stock option plans (in thousands, except per share data and exercise price):
|  | Stock Options
|  | Shares |  | Weighted Average Exercise Price
Outstanding, December 31, 2017 |  | 469 |  |  | $ | 54.60 |
Granted |  | 128 |  |  | 60.42 |
Forfeited/expired |  | (95 | ) |  | 57.98 |
Exercised |  | (19 | ) |  | 26.12 |
Outstanding, December 30, 2018 |  | 483 |  |  | $ | 56.62 |
|  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years of Contractual Life |  | Aggregate Intrinsic Value
Outstanding as of December 30, 2018 |  | 483 |  |  | $ | 56.62 |  |  | 6.82 |  | $ | 67 |
Vested and expected to vest as of December 30, 2018 (1) |  | 444 |  |  | $ | 56.62 |  |  | 6.66 |  | $ | 67 |
Exercisable as of December 30, 2018 |  | 246 |  |  | $ | 55.59 |  |  | 5.36 |  | $ | 67 |
___________________________________ (1) The expected to vest options are the result of applying the pre-vesting forfeiture rate assumption to total outstanding options. The Company applies estimated forfeiture rates that are derived from our historical forfeitures of similar awards. The estimated fair value of each option granted is calculated using the Black-Scholes multiple option-pricing model. The average assumptions used in the model for the fiscal years ended December 30, 2018, December 31, 2017, and December 25, 2016 were as follows:
| 2018 |  | 2017 |  | 2016 |
Risk-free interest rate | 2.5 |  | % |  | 1.8 |  | % |  | 1.2 |  | % |
Expected years until exercise | 3.2 |  |  |  | 5.0 |  |  |  | 4.5 |  |  |
Expected stock volatility | 43.4 |  | % |  | 37.9 |  | % |  | 39.0 |  | % |
Dividend yield | — |  | % |  | — |  | % |  | — |  | % |
Weighted average Black-Scholes fair value per share at date of grant | $ | 16.56 |  |  |  | $ | 17.11 |  |  |  | $ | 20.45 |  |  |
Total intrinsic value of options exercised (in thousands) | $ | 390 |  |  |  | $ | 1,676 |  |  |  | $ | 2,624 |  |  |
The risk-free interest rate was based on the rate for zero coupon U.S. Government issues with a remaining term similar to the expected life. The expected life of the options represents the period of time the options are expected to be outstanding and is based on historical trends and team member exercise patterns. The expected stock price volatility represents an average of the Company’s historical volatility measured over a period approximating the expected life. The dividend yield assumption is based on the Company’s history and expectations of dividend payouts. Time-Based RSUs During 2018, 2017, and 2016, the Company issued time-based restricted stock units (“RSUs”) to certain employees as permitted under the 2017 and 2007 Stock Plans. The Company can grant RSUs to its directors, executive officers and other key employees. The RSUs granted to employees typically vest in equal installments over four years. For the Company’s board of directors, RSUs vest in full on the one-year anniversary date of the grant date. Upon vesting, one share of the Company’s common stock is issued for each RSU. The fair value of each RSU granted is equal to the market price of the Company’s stock at the date of grant. The table below summarizes the status of the Company’s time-based RSUs under the 2017 and 2007 Stock Plans (shares in thousands):
|  | Restricted Stock Units
|  | Shares |  | Weighted Average Grant-Date Fair Value (per share)
Outstanding, December 31, 2017 |  | 102 |  |  | $ | 57.51 |
Awarded |  | 80 |  |  | 52.64 |
Forfeited |  | (24 | ) |  | 55.09 |
Vested |  | (39 | ) |  | 62.51 |
Outstanding, December 30, 2018 |  | 119 |  |  | $ | 53.13 |
Performance Stock Units During 2017, the Company granted performance stock unit awards (“PSUs”) to certain employees as permitted under the 2017 Stock Plan. Each PSU represents the right to receive one share of the Company’s common stock on the payment date, subject to the achievement of the applicable performance goals at target and applicable vesting conditions. Each PSU is divided into three equal tranches with applicable performance periods, typically consisting of an annual fiscal year. PSUs remain unvested until the last day of the third performance period and are forfeited in the event of termination of employment of a grantee prior to the last day of the third performance period. The table below summarizes the status of the Company’s performance stock units under the 2017 Stock Plan (shares in thousands):
|  | Performance Stock Units
|  | Shares |  | Weighted Average Grant-Date Fair Value (per share)
Outstanding, December 31, 2017 |  | 30 |  |  | $ | 48.87 |
Awarded |  | 38 |  |  | 61.25 |
Forfeited |  | (5 | ) |  | 61.25 |
Vested |  | — |  |  | — |
Outstanding, December 30, 2018 |  | 63 |  |  | $ | 55.35 |
Long-Term Cash Incentive Plan Beginning in 2017, the long-term cash incentive plan is based on operational metrics with three one-year performance periods. Prior to 2017, the long-term cash incentive plan was based on operational metrics with one three-year performance period. Compensation expense is recognized over the performance period based on the plan-to-date performance achievement. The awards cliff vest at the end of each three-year performance cycle. In 2018 and 2017, the Company recorded $0.7 million and $0.4 million in compensation expense related to the 2017 long-term cash incentive plan. In 2016, the Company reversed $2.3 million of its long-term cash incentive plan liability upon determining that certain performance metrics were not probable of being achieved. In 2017, the Company paid out $0.7 million cash awards related to achievement of the performance metrics of the 2014 long-term cash incentive plan. In 2016, the Company paid out $3.4 million cash awards related to achievement of the performance metrics of the 2013 long-term cash incentive plan. At December 30, 2018 and December 31, 2017, a $0.7 million and $0.4 million long-term cash incentive plan liability was included in Accrued payroll and payroll-related liabilities in the accompanying consolidated balance sheets.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation and deferred compensation plans, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References No definition available. + Details
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