Earnings per Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Numerator for basic and diluted EPS — net income (loss)	$ (14,968)	$ (12,697)	$ (22,541)	$ (28,083)
Denominator for basic EPS — weighted average number of shares	18,886,856	23,925,310	18,895,775	24,231,448
Add — dilutive effect of:
Restricted stock units	0	0	0	0
Denominator for diluted EPS — weighted average number of shares and dilutive securities	18,886,856	23,925,310	18,895,775	24,231,448
Earnings per share:
Basic (usd per share)	$ (0.79)	$ (0.53)	$ (1.19)	$ (1.16)
Diluted (usd per share)	$ (0.79)	$ (0.53)	$ (1.19)	$ (1.16)
Pro Forma
Add — dilutive effect of:
Denominator for diluted EPS — weighted average number of shares and dilutive securities	20,973,282	24,116,240	21,866,548	24,654,855