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Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (29,663)	$ (37,144)
Basic - weighted average shares outstanding	5,613	5,559
Dilutive effect of stock options and restricted stock (in shares)	0	0
Dilutive effect of convertible notes due 2025 (in shares)	0	0
Diluted - weighted average shares outstanding	5,613	5,559
Loss per share
Basic (in USD per share)	$ (5.28)	$ (6.68)
Diluted (in USD per share)	$ (5.28)	$ (6.68)

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