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Stock-Based Compensation (Tables) | 12 Months Ended
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Jan. 31, 2016
Summary of Stock Options Activity | The following table summarizes our stock option activity during fiscal 2015:
|  | Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Contractual Term Remaining (Years) |  |  | Intrinsic Value1 |
Balance at February 1, 2015 (100% vested) |  |  | 107,000 |  |  | $ | 39.05 |  |  |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (68,500 | ) |  | $ | 38.64 |  |  |  |  |  |  |  |  |
Cancelled |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Balance at January 31, 2016 (100% vested) |  |  | 38,500 |  |  | $ | 39.80 |  |  |  | 0.31 |  |  | $ | 457,000 |
1 | Intrinsic value for outstanding and vested options is based on the excess of the market value of our common stock on the last business day of the fiscal year (or $51.66) over the exercise price.
Summary of Stock-Settled Stock Appreciation Rights Activity | The following table summarizes our stock-settled stock appreciation right activity during fiscal 2015:
|  | Shares |  |  | Weighted Average Conversion Price1 |  |  | Weighted Average Contractual Term Remaining (Years) |  |  | Intrinsic Value2 |
Balance at February 1, 2015 |  |  | 1,159,948 |  |  | $ | 29.36 |  |  |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Converted into common stock |  |  | (521,913 | ) |  |  | 31.26 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (3,426 | ) |  |  | 35.10 |  |  |  |  |  |  |  |  |
Balance at January 31, 2016 (100% vested) |  |  | 634,609 |  |  | $ | 27.76 |  |  |  | 2.23 |  |  | $ | 15,165,000 |
1 | Conversion price is equal to the market value on the date of grant.
2 | Intrinsic value for outstanding and vested rights is based on the excess of the market value of our common stock on the last business day of the fiscal year (or $51.66) over the conversion price.
Summary of Restricted Stock Units Activity | The following table summarizes our restricted stock unit activity during fiscal 2015:
|  | Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Weighted Average Contractual Term Remaining (Years) |  |  | Intrinsic Value1 |
Balance at February 1, 2015 |  |  | 2,313,477 |  |  | $ | 52.47 |  |  |  |  |  |  |  |  |
Granted |  |  | 821,072 |  |  |  | 76.19 |  |  |  |  |  |  |  |  |
Released |  |  | (656,452 | ) |  |  | 51.34 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (189,139 | ) |  |  | 57.45 |  |  |  |  |  |  |  |  |
Balance at January 31, 2016 |  |  | 2,288,958 |  |  | $ | 60.89 |  |  |  | 2.50 |  |  | $ | 118,248,000 |
Vested plus expected to vest at January 31, 2016 |  |  | 1,436,810 |  |  | $ | 61.20 |  |  |  | 2.35 |  |  | $ | 74,226,000 |
1 | Intrinsic value for outstanding and unvested restricted stock units is based on the market value of our common stock on the last business day of the fiscal year (or $51.66).
Summary of Additional Information About Restricted Stock Units | The following table summarizes additional information about restricted stock units:
|  | Fiscal 2015 |  |  | Fiscal 2014 |  |  | Fiscal 2013 |
Weighted average grant date fair value per share of awards granted |  | $ | 76.19 |  |  | $ | 63.18 |  |  | $ | 53.59 |
Intrinsic value of awards released1 |  | $ | 50,773,000 |  |  | $ | 101,189,000 |  |  | $ | 24,568,000 |
1 | Intrinsic value for releases is based on the market value on the date of release.

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