Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2014
Stock-Based Compensation  
Schedule of employee stock-based compensation expense under the Company's plans

                                                                                                                                                                                        

 

 

Three Months Ended

 

Six Months Ended

 

 

 

June 30,

 

June 30,

 

 

 

2014

 

2013

 

2014

 

2013

 

 

 

 

 

 

 

 

 

 

 

Employee stock-based compensation expense

 

$
3,199

 

$
1,960

 

$
5,767

 

$
4,266

 

Tax effect on employee stock-based compensation expense

 
(1,280

)
(832

)
(2,307

)
(1,475

)

Net effect on income

 

$
1,919

 

$
1,128

 

$
3,460

 

$
2,791

 

 

Schedule of weighted average assumptions used to value stock options granted

                                                                                                                                                                                        

 

 

Three Months Ended

 

Six Months Ended

 

 

 

June 30,

 

June 30,

 

 

 

2014

 

2013

 

2014

 

2013

 

 

 

 

 

 

 

 

 

 

 

Grant date fair value of stock options

 

$

—

 

$

—

 

$
16.81 

 

$
6.11 

 

Volatility

 

—

 

—

 
38.7 

%
40.4 

%

Risk-free interest rate

 

—

 

—

 
1.8 

%
1.0 

%

Dividend yield

 

—

 

—

 
0.0 

%
0.0 

%

Expected term (in years)

 

—

 

—

 
6.0 

 
6.0 

 

 

Summary of stock option activity under the Company's plans

                                                                                                                                                                                        

 

 

Options

 

Weighted-
Average
Exercise Price

 

Weighted-
Average
Remaining
Contractual
Life (Years)

 

Aggregate
Intrinsic Value

 

 

 

 

 

 

 

 

 

 

 

Outstanding as of December 31, 2013

 
4,637,471

 

$
9.04

 

 

 

 

 

Granted

 
155,753

 
41.84

 

 

 

 

 

Exercised

 
(95,609

)
8.77

 

 

 

 

 

Forfeited

 
(4,150

)
9.00

 

 

 

 

 

Outstanding as of March 31, 2014

 
4,693,465

 
10.13

 
5.3

 

$
141,293

 

Granted

 

—

 

 

 

 

 

 

 

Exercised

 
(95,352

)
8.14

 

 

 

 

 

Forfeited

 
(3,300

)
7.80

 

 

 

 

 

Outstanding as of June 30, 2014

 
4,594,813

 
10.17

 
5.0

 

$
178,031

 

Options exercisable

 
3,748,286

 
8.73

 
4.5

 

$
150,653

 

 

Summary of the activity for unvested restricted stock awards granted under the Company's plans

                                                                                                                                                                                        

 

 

 

 

Weighted-

 

 

 

 

 

Average Grant

 

 

 

Number of

 

Date Fair Value

 

 

 

Shares

 

per Share

 

 

 

 

 

 

 

Balance at December 31, 2013

 
901,551

 

$
16.50

 

Granted

 
240,626

 
41.83

 

Vested

 
(116,706

)
14.22

 

Forfeited

 
(10,324

)
26.94

 

Balance at March 31, 2014

 
1,015,147

 
22.69

 

Granted

 

—

 

—

 

Vested

 
(5,671

)
24.60

 

Forfeited

 
(4,312

)
29.79

 

Balance at June 30, 2014

 
1,005,164

 
22.65