Share-Based Incentive Plan - Schedule of Outstanding Shares of Common Stock and Weighted-average Grant Date Fair Value Per Share (Details) - 2017 Equity Incentive Plan - Common Stock - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common Stock, Beginning Balance	624,006	333,969	75,360
Common Stock, Granted	386,003	396,410	278,540
Common Stock, Vested	(121,018)	(100,305)	(19,352)
Common Stock, Forfeited		(6,068)	(579)
Common Stock, Ending Balance	888,991	624,006	333,969
Weighted-Average Grant Date Fair Value Per Share, Beginning Balance	$ 19.93	$ 18.94	$ 19.44
Weighted-Average Grant Date Fair Value Per Share, Granted	11.05	20.52	18.84
Weighted-Average Grant Date Fair Value Per Share, Vested	20.30	19.02	19.44
Weighted-Average Grant Date Fair Value Per Share, Forfeited		18.78	19.44
Weighted-Average Grant Date Fair Value Per Share, Ending Balance	$ 16.09	$ 19.93	$ 18.94