Omnibus Incentive Plan
9 Months Ended
May 29, 2021
Share-based Payment Arrangement [Abstract]  
Stock Option Plan Stock-based compensation includes stock options, restricted stock units, performance stock unit awards and stock appreciation rights, which are awarded to employees, directors, and consultants of the Company. Stock-based compensation expense is recognized on a straight-line basis over the requisite service period of the award based on their grant date fair value. Stock-based compensation expense is included within General and administrative expense, which is the same financial statement caption where the recipient’s other compensation is reported.
    The Company recorded stock-based compensation expense of $2.2 million and $2.2 million in the thirteen weeks ended May 29, 2021 and May 30, 2020, respectively, and $5.8 million and $5.9 million in the thirty-nine weeks ended May 29, 2021 and May 30, 2020, respectively.

Stock Options

    The following table summarizes stock option activity for the thirty-nine weeks ended May 29, 2021:
Shares underlying optionsWeighted average
exercise price
Weighted average remaining contractual life (years)
Outstanding as of August 29, 20202,615,899 $14.33 
Granted289,555 20.47 
Exercised(58,308)12.00 
Forfeited(53,983)22.33 
Outstanding as of May 29, 20212,793,163 $14.86 6.85
Vested and expected to vest as of May 29, 20212,793,163 $14.86 6.85
Exercisable as of May 29, 20212,215,040 $13.25 6.37

    As of May 29, 2021, the Company had $2.9 million of total unrecognized compensation cost related to stock option plans that will be recognized over a weighted average period of 1.7 years. During the thirty-nine weeks ended May 29, 2021 and May 30, 2020, the Company received $0.7 million and $0.9 million in cash from stock option exercises, respectively.

Restricted Stock Units

    The following table summarizes restricted stock unit activity for the thirty-nine weeks ended May 29, 2021:
Restricted Stock UnitsWeighted average
grant-date fair value
Non-vested as of August 29, 2020208,023 $22.82 
Granted423,387 24.84 
Vested(79,381)25.08 
Forfeited(48,735)21.33 
Non-vested as of May 29, 2021503,294 $24.31 

    As of May 29, 2021, the Company had $9.8 million of total unrecognized compensation cost related to restricted stock units that will be recognized over a weighted average period of 2.1 years.

Performance Stock Units

    During the thirty-nine weeks ended May 29, 2021, the Board of Directors granted performance stock units under the Company’s equity compensation plan. Performance stock units vest in a range between 0% and 200% based upon certain performance criteria in a three-year period. Performance stock units were valued using a Monte Carlo simulation.
    The following table summarizes performance stock unit activity for the thirty-nine weeks ended May 29, 2021:
Performance stock unitsWeighted average
grant-date fair value
Non-vested as of August 29, 2020295,256 $17.93 
Granted116,309 23.59 
Vested— — 
Forfeited(30,688)22.28 
Non-vested as of May 29, 2021380,877 $19.31 

    As of May 29, 2021, the Company had $3.7 million of total unrecognized compensation cost related to performance stock units that will be recognized over a weighted average period of 1.3 years.

Stock Appreciation Rights

    Stock appreciation rights (“SARs”) permit the holder to participate in the appreciation of the Company’s common stock price. The Company’s SARs settle in shares of its common stock once the applicable vesting criteria has been met. SARs cliff vest three years from the date of grant and must be exercised within ten years.

    The following table summarizes SARs activity for the thirty-nine weeks ended May 29, 2021:
Shares underlying SARsWeighted average
exercise price
Weighted average remaining contractual life (years)
Outstanding as of August 29, 2020150,000 $24.20 
Granted— — 
Exercised— — 
Forfeited— — 
Outstanding as of May 29, 2021150,000 $24.20 8.43
Vested and expected to vest as of May 29, 2021150,000 $24.20 8.43
Exercisable as of May 29, 2021— $— 0.00

    As of May 29, 2021, the Company had $0.2 million of total unrecognized compensation cost related to its SARs that will be recognized over a weighted average period of 1.4 years.