Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended
	Dec. 31, 2019	Feb. 28, 2019	Mar. 31, 2020	Mar. 31, 2019
Class of Stock [Line Items]
Proceeds from issuance of common stock, net of offering costs			$ 0	$ 118,657
Follow-On Equity Offering
Class of Stock [Line Items]
Number of shares issued or sold (in shares)		5,500,000
Common stock purchase price (in dollars per share)		$ 20.00
Proceeds from issuance of common stock, net of offering costs		$ 118,700
Over-allotment option
Class of Stock [Line Items]
Number of shares issued or sold (in shares)		825,000
Common stock purchase price (in dollars per share)		$ 20.00
At the Market Offering
Class of Stock [Line Items]
Number of shares issued or sold (in shares)			0
Common stock maximum amount available for issuance	$ 50,000