CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net Income (Loss)	$ (277,168)	$ 5,370
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation, depletion, and amortization	66,232	65,103
Impairment expense	67,922	0
Debt extinguishment and commitment costs	0	9,186
Non-cash interest expense	5,066	7,064
Non-cash lower of cost or net realizable value adjustment	22,281	2,496
Change in value of common stock warrants	(4,270)	3,065
Deferred taxes	(21,087)	(69,563)
Stock-based compensation	5,314	4,646
Unrealized (gain) loss on derivative contracts	(2,733)	6,328
Equity losses from Laramie Energy, LLC	46,905	84,841
Net changes in operating assets and liabilities:
Trade accounts receivable	112,177	(39,455)
Prepaid and other assets	50,830	13,838
Inventories	98,830	(249,814)
Deferred turnaround expenditures	(40,575)	(8,986)
Obligations under inventory financing agreements	(124,418)	212,862
Accounts payable, other accrued liabilities, and operating lease ROU assets and liabilities	20,647	51,651
Net cash provided by operating activities	25,953	98,632
Cash flows from investing activities:
Acquisitions of businesses, net of cash acquired	0	(274,291)
Proceeds from purchase price settlement related to asset acquisition	0	3,226
Capital expenditures	(42,451)	(64,086)
Other investing activities	23	864
Net cash used in investing activities	(42,428)	(334,287)
Cash flows from financing activities:
Proceeds from borrowings	205,950	470,505
Repayments of borrowings	(120,489)	(207,121)
Net borrowings (repayments) on deferred payment arrangements and receivable advances	(60,839)	27,783
Payment of deferred loan costs	(6,266)	(13,450)
Payments for debt extinguishment and commitment costs	0	(7,142)
Other financing activities, net	(976)	2,396
Net cash provided by financing activities	17,380	272,971
Net increase in cash, cash equivalents, and restricted cash	905	37,316
Cash, cash equivalents, and restricted cash at beginning of period	128,428	75,819
Cash, cash equivalents, and restricted cash at end of period	129,333	113,135
Net cash received (paid) for:
Interest	(35,697)	(35,913)
Taxes	124	(3,974)
Non-cash investing and financing activities:
Accrued capital expenditures	10,981	7,207
Value of warrants reclassified to equity	3,936	0
ROU assets obtained in exchange for new finance lease liabilities	1,992	198
ROU assets obtained in exchange for new operating lease liabilities	11,974	15,532
ROU assets terminated in exchange for release from operating lease liabilities	7,738	193
Common stock issued for business combination	0	36,980
Common stock issued to repurchase convertible notes	$ 0	$ 30,055