CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues	$ 187,697	$ 225,399	$ 501,698	$ 711,753
Cost of Revenues	163,538	195,955	450,761	616,784
Gross profit	24,159	29,444	50,937	94,969
Selling, General and Administrative Expenses	14,408	17,531	47,491	48,978
Amortization Expense	858	437	2,575	1,080
Impairment Expense	0	0	29,017	0
Operating (Loss) Income	8,893	11,476	(28,146)	44,911
Interest and Other Expense	5,674	3,800	16,142	15,686
(Loss) Income Before Provision for Income Taxes	3,219	7,676	(44,288)	29,225
(Benefit) Provision for Income Taxes	(959)	496	(11,375)	5,913
Net (Loss) Income	$ 4,178	$ 7,180	$ (32,913)	$ 23,312
(Loss) Earnings per Common Share:
Basic (in dollars per share)	$ 0.13	$ 0.23	$ (1.07)	$ 0.76
Diluted (in dollars per share)	$ 0.13	$ 0.23	$ (1.07)	$ 0.76
Weighted Average Shares Outstanding:
Basic (in shares)	30,986	30,581	30,894	30,547
Diluted (in shares)	31,617	30,852	30,894	30,829