CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenues	$ 126,896	$ 243,190	$ 314,001	$ 486,354
Cost of Revenues	120,421	210,754	287,223	420,829
Gross Profit	6,475	32,436	26,778	65,525
Selling, General and Administrative Expenses	15,984	16,248	33,083	31,447
Amortization Expense	856	322	1,716	643
Impairment Expense	150	0	29,017	0
Operating (Loss) Income	(10,515)	15,866	(37,038)	33,435
Interest and Other Expense	5,104	7,490	10,469	11,886
(Loss) Income Before Provision for Income Taxes	(15,619)	8,376	(47,507)	21,549
(Benefit) Provision for Income Taxes	(3,122)	2,230	(10,416)	5,417
Net (Loss) Income	$ (12,497)	$ 6,146	$ (37,091)	$ 16,132
(Loss) Earnings per Common Share:
Basic (in dollars per share)	$ (0.40)	$ 0.20	$ (1.20)	$ 0.53
Diluted (in dollars per share)	$ (0.40)	$ 0.20	$ (1.20)	$ 0.52
Weighted Average Shares Outstanding:
Basic (in shares)	30,890	30,547	30,848	30,530
Diluted (in shares)	30,890	30,824	30,848	30,731