Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss	$ (221,558)	$ (94,130)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities
Depreciation and amortization	40,593	85,668
Asset impairment	98,943	0
Inventory and other write-downs	4,846	7,080
(Gain) on derivative	(3,916)	0
Accretion on asset retirement obligation	1,445	607
Change in allowance for doubtful accounts	2,547	711
Amortization of deferred financing costs	2,794	1,745
Amortization of debt discount	3,837	789
Non-cash compensation	1,216	8,237
(Gain) / Loss on disposal of assets	(2,868)	2,634
Deferred income taxes	(3,946)	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	65,844	20,401
Inventories	4,077	4,546
Prepaid expenses and other current assets	(3,212)	2,404
Other assets	895	(8)
Accounts payable	(3,160)	(31,617)
Income tax receivable	0	1,574
Other liabilities	(1,955)	131
Accrued expenses	13,800	17,740
Net cash provided by operating activities	222	28,512
Cash flows from investing activities:
Purchase of property and equipment	(6,872)	(46,263)
Proceeds from sale of assets	51,412	7,122
Payments for other long-term assets	(1,144)	(411)
Payments for businesses, net of cash acquired	(59,350)	0
Net cash used in investing activities	(15,954)	(39,552)
Cash flows from financing activities:
Proceeds from debt	38,000	0
Repayments of debt	(42,407)	(23,209)
Change in treasury stock including restricted stock issuances	(15)	(5,122)
Deferred loan costs and other financing activities	(1,827)	(469)
Net cash (used in) financing activities	(6,249)	(28,800)
Net decrease in cash, cash equivalents and restricted cash	(21,981)	(39,840)
Cash, cash equivalents and restricted cash - beginning of period	36,217	90,300
Cash, cash equivalents and restricted cash - end of period	14,236	50,460
Noncash investing and financing activity:
Capital leases and notes issued for equipment	498	7,943
Change in accrued property and equipment	88	310
Issuance of Series A Participating Preferred Stock	22,000	0
Issuance of derivative liability	9,713	0
Change in asset retirement obligations	$ 8	$ 6,420