v2.4.0.8
Stockholders' Equity and Stock-Based Compensation Stockholders' Equity Tables (Tables)
 6 Months Ended
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The table below summarizes the stock option activity for the six months ended June 30, 2014:
 
 
Options
 
Weighted- Average Exercise Price
 
Weighted- Average Remaining Contractual Term (in years)
 
Aggregate Intrinsic Value
(in thousands) (1)
Outstanding at December 31, 2013
 
3,355,054

 
$
1.11

 
6.04
 
$
35,742

    Exercised
 
(569,374
)
 
$
1.10

 
 
 
 
    Forfeited
 
(11,710
)
 
$
2.27

 
 
 
 
Outstanding at June 30, 2014
 
2,773,970

 
$
1.10

 
5.53
 
$
15,320

 
 
 
 
 
 
 
 
 
Exercisable at June 30, 2014
 
2,686,103

 
$
1.05

 
5.51
 
$
14,971

(1)
The aggregate intrinsic value of options outstanding and exercisable represents the total pretax intrinsic value (the difference between the fair value of the Company's stock on the last day of each period and the exercise price, multiplied by the number of options where the fair value exceeds the exercise price) that would have been received by the option holders had all option holders exercised their options as of June 30, 2014 and December 31, 2013, respectively.
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
The table below summarizes activity regarding unvested restricted stock units under the Plans for the six months ended June 30, 2014:
 
 
Restricted Stock Units
 
Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013
 
41,648,055

 
$
8.06

    Granted
 
18,257,977

 
$
8.17

    Vested
 
(8,107,006
)
 
$
7.71

    Forfeited
 
(7,556,342
)
 
$
8.21

Unvested at June 30, 2014
 
44,242,684

 
$
8.17
Schedule of Nonvested Restricted Stock Units Activity, Acquisition [Table Text Block]
The table below summarizes activity regarding unvested restricted stock for the six months ended June 30, 2014:
 
 
Restricted Stock
 
Weighted- Average Grant Date Fair Value (per share)
Unvested at December 31, 2013
 
97,677

 
$
14.00

    Vested
 
(47,299
)
 
$
14.37

    Forfeited
 
(7,693
)
 
$
17.07

Unvested at June 30, 2014
 
42,685

 
$
15.84