XML 61 R28.htm IDEA: XBRL DOCUMENT v3.20.1
Equity Incentive Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Summary of Share-based Awards Available for Grant under 2016 Plan
A summary of share-based awards available for grant under the 2016 Equity Incentive Plan is as follows:
Awards Available for Grant
Balance at December 31, 20184,717,292  
Additional awards authorized1,218,402  
Awards granted(649,911) 
Awards forfeited181,513  
Awards withheld for tax purposes60,836  
Balance at December 31, 20195,528,132  
Additional awards authorized1,333,928  
Awards granted(286,155) 
Awards forfeited110,981  
Awards withheld for tax purposes51,475  
Balance at March 31, 20206,738,361  
Summary of Stock Option Activity Under 2006 and 2016 Plans
The following table summarizes stock option activity under the 2006 and 2016 Equity Incentive Plans:
Options Outstanding
Options
Outstanding		Weighted-
Average
Exercise
Price Per
Share		Weighted-
Average
Remaining
Contractual
Life (years)		Aggregate
Intrinsic Value
(in thousands)
Balance at December 31, 20182,094,137  $23.20  7.02$97,976  
Options granted20,010  $82.77  
Options exercised(540,307) $9.59  
Options forfeited(70,593) $54.54  
Balance at December 31, 20191,503,247  $27.40  6.43$62,401  
Options exercised(264,800) $11.21  
Options forfeited(16,826) $68.32  
Balances at March 31, 20201,221,621  $30.35  6.39$62,595  
Options exercisable – March 31, 2020941,215  $23.59  6.05$54,482  
Options vested and expected to vest – March 31, 20201,210,815  $30.07  6.38$62,368