Equity Incentive Awards - Narrative (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Option Exercise Price as Percent of Value of Common Stock	100.00%
Total Shares That May be Issued, Equity Incentive Plan	20,000,000
Options Outstanding, Equity Incentive Plan	7,456,905
Restricted Stock Units Outstanding, Equity Incentive Plan	2,801,928
Stock Options Exercised, Equity Incentive Plan	1,909,515
Shares Issued Pursuant to Restricted Stock Units, Equity Incentive Plan	1,968,979
Shares Issued Pursuant to Stock Bonus Awards, Equity Incentive Plan	113,940
Total value of shares by nonemployee in a year | $	$ 500,000
Total Shares That May Be Issued, Non-Employee Directors Equity Incentive Plan	600,000
Options Outstanding, Non-Employee Directors Equity Incentive Plan	237,850
Stock Options Exercised, Non-Employee Directors Equity Incentive Plan	0
Shares Issued Pursuant to Restricted Stock Awards, Non-Employee Directors Equity Incentive Plan	103,208
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	10,524,411
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,979,947
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Award term	10 years
Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years