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Stock-Based Compensation and Employee Stock Plans (Tables) | 12 Months Ended
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Jan. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of stock-based compensation | The following represents total stock-based compensation recognized in the Consolidated Statements of Income for the fiscal years presented (in thousands):
| 2015 |  | 2014 |  | 2013
Stock option expense | $ | 8,211 |  |  | $ | 7,903 |  |  | $ | 8,263 |
Restricted stock expense | 21,077 |  |  | 18,372 |  |  | 18,856 |
Total stock-based compensation expense | $ | 29,288 |  |  | $ | 26,275 |  |  | $ | 27,119 |
Total related tax benefit | $ | 10,290 |  |  | $ | 9,200 |  |  | $ | 9,230 |
Schedule of assumptions used to estimate the fair value of stock-based awards to employees | The fair value of stock-based awards to employees is estimated on the date of grant using the Black-Scholes valuation with the following assumptions:
| Employee Stock Option Plans
Black-Scholes Valuation Assumptions | 2015 |  | 2014 |  | 2013
Expected life (years) (1) | 5.41 |  |  | 5.23 |  |  | 5.33 |
Expected volatility (2) | 30.38% - 42.07% |  |  | 31.97% - 44.48% |  |  | 36.10% - 47.86% |
Weighted average volatility | 32.67 | % |  | 36.28 | % |  | 46.71 | %
Risk-free interest rate (3) | 1.28% - 1.74% |  |  | 1.44% - 2.39% |  |  | 0.73% - 1.73% |
Expected dividend yield | 0.98% - 1.12% |  |  | 0.90% - 1.13% |  |  | 0.98% - 1.04% |
Weighted average grant date fair value | $ | 16.28 |  |  | $ | 17.31 |  |  | $ | 18.31 |
(1) | The expected term of the options represents the estimated period of time until exercise and is based on historical experience of similar awards giving consideration to the contractual terms, vesting schedules and expectations of future employee behavior.
(2) | Expected volatility is based on the historical volatility of the Company's common stock over a timeframe consistent with the expected life of the stock options.
(3) | The risk-free interest rate is based on the implied yield available on U.S. Treasury constant maturity interest rates whose term is consistent with the expected life of the stock options.
Schedule of stock option activity | The stock option activity from February 2, 2013 through January 30, 2016 is presented in the following table:
| Shares Subject to Options |  | Weighted Average Exercise Price per Share |  | Weighted Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding, February 2, 2013 | 6,708,724 |  |  | $ | 24.50 |  |  | 3.60 |  | $ | 157,380 |
Granted | 682,344 |  |  | 47.31 |  |  |  |  |
Exercised | (2,154,201 | ) |  | 20.18 |  |  |  |  |
Forfeited / Expired | (282,820 | ) |  | 41.57 |  |  |  |  |
Outstanding, February 1, 2014 | 4,954,047 |  |  | $ | 28.55 |  |  | 3.19 |  | $ | 118,784 |
Granted | 559,722 |  |  | 53.78 |  |  |  |  |
Exercised | (1,175,540 | ) |  | 22.22 |  |  |  |  |
Forfeited / Expired | (256,931 | ) |  | 44.42 |  |  |  |  |
Outstanding, January 31, 2015 | 4,081,298 |  |  | $ | 32.83 |  |  | 3.00 |  | $ | 78,432 |
Granted | 812,482 |  |  | 56.97 |  |  |  |  |
Exercised | (773,773 | ) |  | 26.64 |  |  |  |  |
Forfeited / Expired | (145,495 | ) |  | 51.38 |  |  |  |  |
Outstanding, January 30, 2016 | 3,974,512 |  |  | $ | 38.29 |  |  | 2.94 |  | $ | 51,930 |
Exercisable, January 30, 2016 | 2,553,304 |  |  | $ | 29.42 |  |  | 1.51 |  | $ | 51,159 |
Vested and expected to vest, January 30, 2016 | 3,805,506 |  |  | $ | 37.55 |  |  | 2.81 |  | $ | 51,863 |
Schedule of nonvested stock option activity | The nonvested stock option activity for the year ended January 30, 2016 is presented in the following table:
| Shares Subject to Options |  | Weighted Average Grant Date Fair Value
Nonvested, January 31, 2015 | 1,206,844 |  |  | $ | 18.10 |
Granted | 812,482 |  |  | 16.28 |
Vested | (462,175 | ) |  | 18.26 |
Forfeited | (135,943 | ) |  | 17.87 |
Nonvested, January 30, 2016 | 1,421,208 |  |  | $ | 17.03 |
Schedule of stock options outstanding and exercisable by range of exercise prices | Additional information regarding options outstanding as of January 30, 2016 is as follows:
|  | Options Outstanding |  | Options Exercisable
Range of Exercise Prices |  | Shares |  | Weighted Average Remaining Contractual Life (Years) |  | Weighted Average Exercise Price |  | Shares |  | Weighted Average Exercise Price
$13.82 - $26.03 |  | 1,077,719 |  |  | 0.32 |  | $ | 17.90 |  |  | 1,077,719 |  |  | $ | 17.90 |
$26.77 - $44.88 |  | 1,002,241 |  |  | 1.68 |  | 32.16 |  |  | 956,369 |  |  | 31.57 |
$45.34 - $55.29 |  | 1,244,756 |  |  | 4.57 |  | 50.38 |  |  | 508,268 |  |  | 49.22 |
$55.49 - $58.48 |  | 649,796 |  |  | 6.09 |  | 58.40 |  |  | 10,948 |  |  | 56.65 |
$13.82 - $58.48 |  | 3,974,512 |  |  | 2.94 |  | $ | 38.29 |  |  | 2,553,304 |  |  | $ | 29.42 |
Schedule of nonvested restricted stock activity | The restricted stock activity from February 2, 2013 through January 30, 2016 is presented in the following table:
| Shares |  | Weighted Average Grant Date Fair Value
Nonvested, February 2, 2013 | 2,092,095 |  |  | $ | 35.48 |
Granted | 1,806,949 |  |  | 46.85 |
Vested | (913,769 | ) |  | 27.46 |
Forfeited | (553,621 | ) |  | 39.93 |
Nonvested, February 1, 2014 | 2,431,654 |  |  | $ | 45.93 |
Granted | 593,841 |  |  | 53.36 |
Vested | (433,249 | ) |  | 39.99 |
Forfeited | (406,127 | ) |  | 48.40 |
Nonvested, January 31, 2015 | 2,186,119 |  |  | $ | 48.67 |
Granted | 661,640 |  |  | 56.95 |
Vested | (400,951 | ) |  | 48.59 |
Forfeited | (241,828 | ) |  | 50.52 |
Nonvested, January 30, 2016 | 2,204,980 |  |  | $ | 50.97 |

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