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Share-Based Compensation - Schedule of Restricted Stock and Restricted Stock Units (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
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12 Months Ended |
|
Jan. 31, 2015
|
| Performance-based Restricted Stock Units [Member] |
|
| Number of Shares |
|
| Awards Granted (in shares) |
500 |
| Grant Date Weighted Average Fair Value |
|
| Performance condition period |
2 years |
| Restricted Stock Units And Restricted Stock Awards [Member] |
|
| Number of Shares |
|
| Awards Unvested at beginning of period (in shares) |
1,487 |
| Awards Granted (in shares) |
778 |
| Awards Vested (in shares) |
(718) |
| Awards Forfeited (in shares) |
(112) |
| Awards Unvested at end of period (in shares) |
1,435 |
| Grant Date Weighted Average Fair Value |
|
| Awards, grant date weighted average fair value at beginning of period (usd per share) |
19.29 |
| Awards, grant date weighted average fair value, shares granted (usd per share) |
15.68 |
| Awards, grant date weighted average fair value, shares vested (usd per share) |
18.66 |
| Awards, grant date weighted average fair value, shares forfeited (usd per share) |
18.08 |
| Awards, grant date weighted average fair value at end of period (usd per share) |
17.75 |
| Minimum [Member] | Performance-based Restricted Stock Units [Member] |
|
| Grant Date Weighted Average Fair Value |
|
| Target percentage of equity awards earned over two-year performance period |
0.00% |
| Maximum [Member] | Performance-based Restricted Stock Units [Member] |
|
| Grant Date Weighted Average Fair Value |
|
| Target percentage of equity awards earned over two-year performance period |
125.00% |