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Share-Based Compensation | 12 Months Ended
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Jan. 30, 2021
Share-based Payment Arrangement [Abstract] |
Share-Based Compensation | Share-Based CompensationEquity Incentive PlanPursuant to the Company's 2002 Equity Incentive Plan (the “Plan”), the Company’s Board of Directors may grant stock options, restricted shares and restricted stock units to officers, directors, key employees and professional service providers. The Plan, as amended, allows for the issuance of up to a total of 7.6 million shares under the Plan. As of January 30, 2021, 2.8 million stock options, restricted shares, or restricted stock units were available for grant. Common Stock Options All stock options have a term not greater than ten years. Stock options vest and become exercisable in whole or in part, in accordance with vesting conditions set by the Company’s Board of Directors. Options granted to date generally vest over four years from the date of grant. Stock option activity under the Plan was as follows:
| Options outstanding |  | Weighted average exercise price |  | Weighted average remaining contractual term
Balance as of February 3, 2018 | 519,485 |  |  | $ | 29.53 |  |  | 5.9
Granted | — |  |  | — |  |  |
Forfeited | (71) |  |  | 4.95 |  |  |
Exercised | (145,157) |  |  | 27.73 |  |  |
Balance as of February 2, 2019 | 374,257 |  |  | 30.23 |  |  | 5.1
Granted | — |  |  | — |  |  |
Forfeited | (1,150) |  |  | 39.47 |  |  |
Exercised | (141,582) |  |  | 29.02 |  |  |
Balance as of February 1, 2020 | 231,525 |  |  | 30.92 |  |  | 4.1
Granted | — |  |  |  |  |
Forfeited | (1,650) |  |  | 31.49 |  |  |
Exercised | (176,846) |  |  | 30.23 |  |  |
Balance as of January 30, 2021 | 53,029 |  |  | 33.22 |  |  | 3.2
Exercisable as of January 30, 2021 | 53,029 |  |  | $ | 33.22 |  |  | 3.2
The fair value of each option award granted to employees, including outside directors, is estimated on the date of grant using the Black-Scholes option-pricing model. The Company did not grant any stock options in fiscal 2020, fiscal 2019 and fiscal 2018. The Company uses the simplified method to estimate the expected term of the option. The expected volatility incorporates historical and implied volatility of similar entities whose share prices are publicly available. The risk-free rate for the expected term of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The total intrinsic value of stock options exercised during fiscal 2020, fiscal 2019 and fiscal 2018 was $17.6 million, $14.0 million and $9.9 million, respectively. The aggregate intrinsic value of stock options outstanding and exercisable was $7.5 million as of January 30, 2021. In fiscal 2020, fiscal 2019 and fiscal 2018, the Company received cash from the exercise of options of $5.3 million, $4.1 million and $4.0 million, respectively. Upon option exercise, the Company issued new shares of common stock. Restricted Stock Units and Performance-Based Restricted Stock Units All restricted stock units ("RSU") and performance-based restricted stock units ("PSU") vest in accordance with vesting conditions set by the compensation committee of the Company’s Board of Directors. RSUs granted to date have vesting periods ranging from less than one year to five years from the date of grant and the fair value of RSUs is the market price of the underlying common stock on the date of grant. PSUs granted to date have vesting periods ranging from less than one year to five years from the date of grant. PSUs that have a performance condition are subject to satisfaction of the applicable performance goals established for the respective grant. The Company periodically assesses the probability of achievement of the performance criteria and adjusts the amount of compensation expense accordingly. The fair value of these PSUs is the market price of the underlying common stock on the date of grant. Compensation is recognized over the vesting period and adjusted for the probability of achievement of the performance criteria. PSUs that have a market condition based on our total shareholder return relative to a pre-defined peer group are subject to multi-year performance objectives with a vesting date in 2023 (if the applicable performance objectives are achieved). The fair value of these PSUs are determined using a Monte Carlo valuation model. RSU and PSU activity under the Plan was as follows:
| Restricted Stock Units |  | Performance-Based Restricted Stock Units
| Number |  | Weighted-Average Grant Date Fair Value |  | Number |  | Weighted-Average Grant Date Fair Value
Non-vested balance as of February 3, 2018 | 309,554 |  |  | $ | 38.48 |  |  | 495,659 |  |  | $ | 37.43 |
Granted | 115,411 |  |  | 77.28 |  |  | 121,333 |  |  | 69.59 |
Vested | (107,695) |  |  | 37.98 |  |  | (197,534) |  |  | 35.69 |
Forfeited | (24,382) |  |  | 43.75 |  |  | (3,258) |  |  | 69.03 |
Non-vested balance as of February 2, 2019 | 292,888 |  |  | 53.52 |  |  | 416,200 |  |  | 47.38 |
Granted | 89,337 |  |  | 119.28 |  |  | 85,939 |  |  | 116.92 |
Vested | (109,924) |  |  | 44.70 |  |  | (117,137) |  |  | 39.21 |
Forfeited | (21,949) |  |  | 70.48 |  |  | (27,836) |  |  | 45.23 |
Non-vested balance as of February 1, 2020 | 250,352 |  |  | 79.37 |  |  | 357,166 |  |  | 66.96 |
Granted | 179,947 |  |  | 107.82 |  |  | 370,613 |  |  | 134.73 |
Vested | (102,382) |  |  | 66.33 |  |  | (127,622) |  |  | 39.89 |
Forfeited | (23,519) |  |  | 87.54 |  |  | (340,381) |  |  | 89.54 |
Non-vested balance as of January 30, 2021 | 304,398 |  |  | $ | 99.94 |  |  | 259,776 |  |  | $ | 151.73 |
In connection with the vesting of RSUs and PSUs during fiscal 2020, the Company withheld 51,734 shares with an aggregate value of $3.9 million in satisfaction of minimum tax withholding obligations due upon vesting. In connection with the vesting of RSUs and PSUs during fiscal 2019, the Company withheld 83,121 shares with an aggregate value of $10.4 million in satisfaction of minimum tax withholding obligations due upon vesting. In connection with the vesting of RSUs during fiscal 2018, the Company withheld 113,058 shares with an aggregate value of $8.0 million in satisfaction of minimum tax withholding obligations due upon vesting. As of January 30, 2021, there was $35.9 million of total unrecognized compensation costs related to non-vested share-based compensation arrangements (including stock options, RSUs and PSUs) granted under the Plan. The cost is expected to be recognized over a weighted average vesting period of 2.7 years. Share Repurchase Program On March 20, 2018, the Company's Board of Directors approved a share repurchase program authorizing the repurchase of up to $100 million of the Company's common stock through March 31, 2021, on the open market, in privately negotiated transactions, or otherwise. On March 9, 2021, our Board of Directors approved a new share repurchase program for up to $100 million of its common shares through March 31, 2024. In fiscal 2018, the Company repurchased 21,810 shares under this program at an aggregate cost of approximately $2.0 million, or an average price of $91.07 per share. In fiscal 2019, the Company repurchased 337,552 shares under this program at an aggregate cost of approximately $36.9 million, or an average price of $109.27 per share. In fiscal 2020, the Company repurchased 137,023 shares under this program at an aggregate cost of approximately $12.7 million, or an average price of $92.42 per share. There can be no assurances that any additional repurchases will be completed, or as to the timing or amount of any repurchases. The share repurchase program may be modified or discontinued at any time.

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