Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings (Deficit)
Beginning balance (in shares) at Dec. 31, 2017		26,371,572		152,443
Beginning balance at Dec. 31, 2017	$ 338,653	$ 264	$ 439,517	$ (4,454)	$ (96,674)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of restricted stock (in shares)		618,462		(70,147)
Issuances of restricted stock	3	$ 6	(3)
Amortization of share based compensation	27,254		27,254
Purchase of treasury stock	$ (1,885)		(2,504)	$ 619
Purchase of treasury stock (in shares)	160,026			160,026
Net loss	$ (144,597)				(144,597)
Ending balance (in shares) at Dec. 31, 2018		26,990,034		242,322
Ending balance at Dec. 31, 2018	219,428	$ 270	464,264	$ (3,835)	(241,271)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of restricted stock (in shares)		922,025		73,136
Issuances of restricted stock	(331)	$ 9	(9)	$ (331)
Amortization of share based compensation	8,714		8,714
Purchase of treasury stock	$ (4,790)		(375)	$ (4,415)
Purchase of treasury stock (in shares)	2,692,116			2,692,116
Net loss	$ (181,898)				(181,898)
Ending balance (in shares) at Dec. 31, 2019		27,912,059		3,007,574
Ending balance at Dec. 31, 2019	$ 41,123	$ 279	$ 472,594	$ (8,581)	$ (423,169)