Stock Incentive Plans - Summary of Restricted Stock Activity (Details) - Restricted Stock $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Number of  Restricted Stock
Outstanding, at beginning of period (in shares) | shares	1,137
Granted (in shares) | shares	60
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period | shares	(20)
Forfeited (in dollars per share) | $ / shares	$ 26.93
Vested (in shares) | shares	(47)
Outstanding, at end of period (in shares) | shares	1,130
Weighted-Average Grant Date Fair Value
Outstanding, as of beginning of period (in dollars per share) | $ / shares	$ 33.63
Granted (in dollars per share) | $ / shares	50.74
Vested (in dollars per share) | $ / shares	25.43
Outstanding, as of end of period (in dollars per share) | $ / shares	$ 34.98
Total Intrinsic Value of Restricted Stock Vested
Vested | $	$ 2,607