Benefit Plans (Tables)
|
12 Months Ended |
Dec. 31, 2018 |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
|
Summary of Stock Option Activity |
Stock option activity under the Plan during the year ended December 31, 2018 is summarized below.
|
|
Shares |
|
|
Weighted Average
Exercise Price |
|
|
Weighted Average
Remaining
Contractual Term |
|
Aggregate
Intrinsic Value |
|
Outstanding at December 31, 2017 |
|
|
3,058,459 |
|
|
$ |
11.30 |
|
|
|
|
|
|
|
Exercised |
|
|
184,808 |
|
|
|
9.08 |
|
|
|
|
|
|
|
Forfeited |
|
|
216,796 |
|
|
|
13.50 |
|
|
|
|
|
|
|
Granted |
|
|
— |
|
|
|
— |
|
|
|
|
|
|
|
Outstanding at December 31, 2018 |
|
|
2,656,855 |
|
|
$ |
11.27 |
|
|
6.01 |
|
$ |
11,861,636 |
|
Exercisable at December 31, 2018 |
|
|
817,025 |
|
|
$ |
10.77 |
|
|
5.84 |
|
$ |
4,037,146 |
|
|
Summary of Non-vested Stock Option Activity |
The following is a summary of non-vested stock option activity for the Company for the years ended December 31, 2018, 2017, and 2016.
|
|
Shares |
|
|
Weighted
Average Grant
Date Fair
Value |
|
Non-vested at December 31, 2015 |
|
|
3,393,441 |
|
|
$ |
4.56 |
|
Granted |
|
|
169,987 |
|
|
|
6.58 |
|
Vested |
|
|
(372,515 |
) |
|
|
4.41 |
|
Forfeited |
|
|
(174,813 |
) |
|
|
3.06 |
|
Non-vested at December 31, 2016 |
|
|
3,016,100 |
|
|
|
4.78 |
|
Granted |
|
|
— |
|
|
|
— |
|
Vested |
|
|
(340,362 |
) |
|
|
4.36 |
|
Forfeited |
|
|
(310,739 |
) |
|
|
6.25 |
|
Non-vested at December 31, 2017 |
|
|
2,364,999 |
|
|
|
4.65 |
|
Granted |
|
|
— |
|
|
|
— |
|
Vested |
|
|
(308,373 |
) |
|
|
7.51 |
|
Forfeited |
|
|
(216,796 |
) |
|
|
5.90 |
|
Non-vested at December 31, 2018 |
|
|
1,839,830 |
|
|
$ |
4.60 |
|
|
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
Weighted average assumptions used for options granted during the year ended December 31, 2016 were as follows:
|
|
2016 |
|
Risk free rate |
|
|
1.56 |
% |
Dividend yield |
|
|
0.05 |
% |
Volatility |
|
|
44.20 |
% |
Average life (in years) |
|
|
7 |
|
|
Schedule of Nonvested Restricted Stock Activity |
The following is a summary of non-vested RSU stock activity for the Company for the year ended December 31, 2018.
|
|
Shares |
|
|
Weighted
Average Grant
Date Fair
Value |
|
Non-vested at December 31, 2017 |
|
|
181,814 |
|
|
$ |
20.03 |
|
Granted |
|
|
355,150 |
|
|
|
25.17 |
|
Vested |
|
|
91,589 |
|
|
|
23.62 |
|
Forfeited |
|
|
57,188 |
|
|
|
20.27 |
|
Non-vested at December 31, 2018 |
|
|
388,187 |
|
|
$ |
23.85 |
|
|
Schedule of Nonvested Restricted Stock Units Activity |
The following is a summary of non-vested Market RSU stock activity for the Company for the year ended December 31, 2018.
|
|
Shares |
|
|
Weighted
Average Grant
Date Fair
Value |
|
Non-vested at December 31, 2017 |
|
|
2,532,808 |
|
|
$ |
8.78 |
|
Granted |
|
|
485,000 |
|
|
|
16.23 |
|
Vested |
|
|
— |
|
|
|
— |
|
Forfeited |
|
|
308,606 |
|
|
|
10.89 |
|
Non-vested at December 31, 2018 |
|
|
2,709,202 |
|
|
$ |
9.87 |
|
|