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Equity Incentive Plans (Tables)
 9 Months Ended
Sep. 30, 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 nine months ended September 30, 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, 20201,612,026 $31.72 
Granted
901,215 $31.67 
Vested(883,578)$31.52 
Forfeited / Canceled(87,071)$32.79 
Unvested as of September 30, 20201,542,592 $31.74 
Expected to vest after September 30, 20201,344,073 $31.65 2.9$37,271 
Schedule of Nonvested Performance-based Units Activity
The following table summarizes activity related to our PSUs under the Equity Incentive Plan for the nine months ended September 30, 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, 2020136,170 $27.69 
Granted (2)
164,152 $31.85 
Forfeited / Canceled(7,375)$29.65 
Unvested as of September 30, 2020292,947 $29.97 
Expected to vest after September 30, 2020292,947 $29.97 1.7$8,123 
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 nine months ended September 30, 2020:
Number
Outstanding		Weighted
Average Exercise Price		Weighted Average Remaining Contractual Term
(in years)		Aggregate Intrinsic Value
(in thousands)
Balance as of January 1, 2020114,594 $12.26 
Exercised(112,472)$11.88 $2,629 
Canceled(2,122)$32.31 
Balance as of September 30, 2020— $— — $—