Stockholders' Equity (Tables)
|
12 Months Ended |
Dec. 31, 2015 |
|---|
| Equity [Abstract] |
|
| Summary of Restricted Stock Activity |
Restricted stock activity during the year ended December 31,
2015 was as follows:
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| |
|
Number of
Restricted
Shares |
|
|
Weighted
Average Fair
Market Value
Per RSU |
|
|
Outstanding at January 1, 2015
|
|
|
2,849,076 |
|
|
$ |
7.91 |
|
|
Granted:
|
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|
|
|
|
|
|
|
|
Executive officers
|
|
|
2,102,615 |
|
|
|
14.63 |
|
|
Directors
|
|
|
150,000 |
|
|
|
9.31 |
|
|
Employees
|
|
|
169,296 |
|
|
|
8.03 |
|
|
Vested
|
|
|
(857,677 |
) |
|
|
13.06 |
|
|
Forfeitures
|
|
|
(115,156 |
) |
|
|
10.85 |
|
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|
|
|
|
|
|
|
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Outstanding at December 31, 2015
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|
4,298,154 |
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$ |
10.23 |
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| Summary of Stock Option Activity |
Stock option activity for the years ended December 31, 2015,
2014 and 2013 is as follows:
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| |
|
Number of
Shares |
|
|
Weighted Average
Exercise Price Per
Share |
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|
Aggregate
Intrinsic
Value |
|
|
Outstanding at January 1, 2013
|
|
|
4,279,919 |
|
|
$ |
3.70 |
|
|
$ |
4,572 |
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Granted in 2013:
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|
Officers and Directors
|
|
|
55,659 |
|
|
$ |
5.39 |
|
|
|
|
|
|
Others
|
|
|
223,135 |
|
|
|
4.47 |
|
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|
Exercised
|
|
|
(115,667 |
) |
|
|
3.25 |
|
|
|
|
|
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Forfeitures
|
|
|
(250,119 |
) |
|
|
2.89 |
|
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Outstanding at December 31, 2013
|
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|
4,192,927 |
|
|
$ |
3.82 |
|
|
$ |
9,146 |
|
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|
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|
|
|
|
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|
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Granted in 2014:
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Others
|
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|
420,480 |
|
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|
13.86 |
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|
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|
|
Exercised
|
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|
(1,332,563 |
) |
|
|
3.48 |
|
|
|
|
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|
Forfeitures
|
|
|
(84,744 |
) |
|
|
5.26 |
|
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|
|
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Outstanding at December 31, 2014
|
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|
3,196,100 |
|
|
$ |
4.32 |
|
|
$ |
22,881 |
|
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Granted in 2015:
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Others
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|
684,629 |
|
|
|
8.14 |
|
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|
|
|
|
Exercised
|
|
|
(235,480 |
) |
|
|
3.52 |
|
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|
|
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|
Forfeitures
|
|
|
(247,720 |
) |
|
|
12.65 |
|
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|
Outstanding at December 31, 2015
|
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|
3,397,529 |
|
|
$ |
5.42 |
|
|
$ |
3,124 |
|
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|
| Summary of Stock Options Outstanding |
Options outstanding at December 31, 2015 are as follows:
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Range of Exercise Prices
|
|
Number
Outstanding |
|
|
Weighted Average
Remaining Contractual
Life (Years) |
|
|
Weighted Average
Exercise Price |
|
|
Aggregate
Intrinsic
Value |
|
|
$1.00 – 5.00
|
|
|
1,722,191 |
|
|
|
3.96 |
|
|
$ |
2.98 |
|
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|
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|
$5.01 – 10.00
|
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|
1,411,006 |
|
|
|
5.28 |
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|
$ |
6.69 |
|
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|
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|
$10.01 – 15.00
|
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|
131,797 |
|
|
|
9.07 |
|
|
$ |
12.59 |
|
|
|
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|
$15.01 – 20.00
|
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|
132,535 |
|
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|
8.76 |
|
|
$ |
16.38 |
|
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|
3,397,529 |
|
|
|
|
|
|
|
|
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|
$ |
3,124 |
|
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| Summary of Stock Options Exercisable |
Options exercisable at December 31, 2015 are as follows:
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|
Range of Exercise Prices
|
|
Number
Outstanding |
|
|
Weighted Average
Remaining Contractual
Life (Years) |
|
|
Weighted Average
Exercise Price |
|
|
Aggregate
Intrinsic
Value |
|
|
$1.00 – 5.00
|
|
|
1,689,064 |
|
|
|
3.90 |
|
|
$ |
2.95 |
|
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|
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|
$5.01 – 10.00
|
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|
799,926 |
|
|
|
2.06 |
|
|
$ |
6.33 |
|
|
|
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|
$10.01- 15.00
|
|
|
7,915 |
|
|
|
8.56 |
|
|
$ |
12.44 |
|
|
|
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|
$15.01- 20.00
|
|
|
6,279 |
|
|
|
8.74 |
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|
$ |
15.95 |
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|
2,503,184 |
|
|
|
|
|
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|
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|
$ |
3,114 |
|
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|
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|
| Summary of Non-Vested Stock Options |
Nonvested stock options as of December 31, 2015, and changes
during the year then ended, are as follows:
|
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|
|
|
|
|
|
|
|
|
|
|
Nonvested Shares
|
|
Shares |
|
|
Weighted Average
Grant Date Fair
Value |
|
|
Intrinsic
Value |
|
|
Nonvested at January 1, 2015
|
|
|
655,547 |
|
|
|
|
|
|
|
|
|
|
Granted
|
|
|
684,629 |
|
|
|
|
|
|
|
|
|
|
Vested
|
|
|
(207,797 |
) |
|
|
|
|
|
|
|
|
|
Forfeited
|
|
|
(238,034 |
) |
|
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Nonvested at December 31, 2015
|
|
|
894,345 |
|
|
$ |
9.12 |
|
|
$ |
10 |
|
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