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Stock incentive plans (Tables)
 6 Months Ended
Jun. 30, 2014
Stock incentive plans  
Schedule of stock-based compensation expense

 

 

 

Three Months Ended
June 30,

 

Six Months Ended
June 30,

 

 

 

2014

 

2013

 

2014

 

2013

 

 

 

 

 

 

 

 

 

 

 

Network operations

 

$

351

 

$

231

 

$

639

 

$

397

 

Development and technology

 

119

 

142

 

260

 

99

 

Selling and marketing

 

402

 

340

 

736

 

458

 

General and administrative

 

979

 

532

 

1,733

 

893

 

Total stock-based compensation

 

$

1,851

 

$

1,245

 

$

3,368

 

$

1,847

 
Summary of stock option activity

 

 

 

Number of
Options (000’s)

 

Weighted
Average
Exercise
Price

 

Weighted-
Average
Remaining
Contract
Life (years)

 

Aggregate
Intrinsic
Value

 

Outstanding at December 31, 2013

 

4,955

 

$

6.31

 

6.6

 

$

9,535

 

Granted

 

203

 

$

5.99

 

 

 

 

 

Exercised

 

(203

)

$

0.88

 

 

 

 

 

Canceled/forfeited

 

(176

)

$

8.28

 

 

 

 

 

Outstanding at June 30, 2014

 

4,779

 

$

6.46

 

6.3

 

$

9,567

 

Vested, exercisable and expected to vest at June 30, 2014

 

4,653

 

$

6.43

 

6.3

 

$

9,522

 

Exercisable at June 30, 2014

 

2,919

 

$

5.27

 

5.0

 

$

9,005

 
Restricted stock unit awards
  
Stock incentive plans  
Summary of nonvested RSU activity under the 2011 Plan

 

 

 

Number of Shares
(000’s)

 

Weighted Average
Grant-Date Fair
Value

 

Nonvested at December 31, 2013

 

753

 

$

6.22

 

Granted

 

1,516

 

$

5.96

 

Vested

 

(540

)

$

6.24

 

Forfeited

 

(60

)

$

5.91

 

Nonvested at June 30, 2014

 

1,669

 

$

5.99