Stock-Based Compensation - Restricted Stock Units (Details) - Restricted stock units	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Shares
Balance (in shares) | shares	1,084
Granted (in shares) | shares	2,019
Vested (in shares) | shares	(541)
Canceled/Forfeited (in shares) | shares	(158)
Balance (in shares) | shares	2,404
Weighted Average Grant Date Fair Value
Balance (in dollars per share) | $ / shares	$ 11.72
Granted (in dollars per share) | $ / shares	20.97
Vested (in dollars per share) | $ / shares	12.56
Canceled/Forfeited (in dollars per share) | $ / shares	16.68
Balance (in dollars per share) | $ / shares	$ 19.86