Stock-Based Incentive Compensation Plans - Stock Option Activity Under the Stock Option Plan (Details)	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Number of Shares
Outstanding, beginning of period (in shares) | shares	2,718,971
Granted (in shares) | shares	26,236
Exercised (in shares) | shares	(43,334)
Canceled and forfeited (in shares) | shares	(1,319)
Outstanding, end of period (in shares) | shares	2,700,554
Weighted-Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 8.02
Granted (in dollars per share) | $ / shares	17.31
Exercised (in dollars per share) | $ / shares	4.03
Canceled and forfeited (in dollars per share) | $ / shares	12.87
Outstanding, end of period (in dollars per share) | $ / shares	$ 8.17