Stock-Based Incentive Compensation Plans - Restricted Stock Units Activity (Details) - Restricted Stock Units	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Number of Shares
Outstanding, beginning of period (in shares) | shares	543,041
Granted (in shares) | shares	979,082
Vested (in shares) | shares	(237,702)
Canceled and forfeited (in shares) | shares	(34,248)
Outstanding, end of period (in shares) | shares	1,250,173
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 19.72
Granted (in dollars per share) | $ / shares	20.08
Vested (in dollars per share) | $ / shares	20.67
Canceled and forfeited (in dollars per share) | $ / shares	19.55
Outstanding, end of period (in dollars per share) | $ / shares	$ 19.83