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Equity Incentive Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Nonvested Restricted Stock Units Activity
The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the three months ended March 31, 2020:
 
Number
Outstanding
 
Weighted
Average
Grant Date
Fair Value
 
Weighted Average Remaining Contractual Term
(in years)
 
Aggregate Intrinsic Value
   (in thousands) (1)
Unvested as of January 1, 2020
1,612,026

 
$
31.72

 
 
 
 
Granted 
777,439

 
$
33.14

 
 
 
 
Vested
(472,192
)
 
$
30.98

 
 
 
 
Forfeited / Canceled
(12,173
)
 
$
33.64

 
 
 
 
Unvested as of March 31, 2020
1,905,100

 
$
32.47

 
 
 
 
Expected to vest after March 31, 2020
1,777,842

 
$
32.55

 
3.3
 
$
36,463
Schedule of Nonvested Performance-based Units Activity
The following table summarizes activity related to our PSUs under the Equity Incentive Plan for the three months ended March 31, 2020:
 
Number
Outstanding
 
Weighted
Average
Grant Date
Fair Value
 
Weighted Average Remaining Contractual Term
(in years)
 
Aggregate Intrinsic Value
   (in thousands) (1)
Unvested as of January 1, 2020
136,170

 
$
27.69

 
 
 
 
Granted  (2)
159,683

 
$
32.21

 
 
 
 
Unvested as of March 31, 2020
295,853

 
$
30.13

 
 
 
 
Expected to vest after March 31, 2020
295,853

 
$
30.13

 
2.2
 
$
6,068
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes activity related to our stock options under the Equity Incentive Plan for the three months ended March 31, 2020:
 
Number
Outstanding
 
Weighted
Average Exercise Price
 
Weighted Average Remaining Contractual Term
(in years)
 
Aggregate Intrinsic Value
   (in thousands)
Balance as of January 1, 2020
114,594

 
$
12.26

 
 
 
 
Exercised
(112,472
)
 
$
11.88

 
 
 
$
2,629

Canceled
(2,122
)
 
$
32.31

 
 
 
 
Balance as of March 31, 2020
—

 
$
—

 
—

 
$
—