Net (Loss)/Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator [Abstract]
Net (loss) income	$ (14,726)	$ 4,099
Denominator [Abstract]
Weighted-average number of common shares - basic and diluted (in shares)	24,963,603	15,077,647
Net (loss) income per common share - basic and diluted (in dollars per share)	$ (0.59)	$ 0.27
Stock Options [Member]
Dilutive Instruments [Abstract]
Anti-dilutive securities excluded from computation of diluted weighted average shares outstanding (in shares)	1,732,426	0
Unvested Restricted Stock Units [Member]
Dilutive Instruments [Abstract]
Anti-dilutive securities excluded from computation of diluted weighted average shares outstanding (in shares)	172,655	0