Segment Information (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) segment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of businsess segment | segment									4
Revenues	$ 879,112	$ 909,781	$ 856,396	$ 765,439	$ 663,062	$ 610,506	$ 564,245	$ 605,253	$ 3,410,728	$ 2,443,066	$ 1,865,045
Cost of revenues (excluding depreciation)									3,003,116	2,054,627	1,636,339
Operating expense (excluding depreciation)									215,284	202,016	169,371
Depreciation, depletion, and amortization									52,642	45,989	31,617
General and administrative expense (excluding depreciation)									47,426	46,078	42,073
Acquisition and integration costs									10,319	395	5,294
Operating income (loss)	20,408	4,894	28,983	27,656	21,605	26,716	16,451	29,189	81,941	93,961	(19,649)
Interest Expense									(39,768)	(31,632)	(28,506)
Debt extinguishment and commitment costs									(4,224)	(8,633)	0
Gain on curtailment of pension obligation									0	0	3,067
Other income, net									1,046	911	(10)
Change in value of common stock warrants									1,801	(1,674)	2,962
Change in value of contingent consideration									(10,500)	0	10,770
Equity earnings (losses) from Laramie Energy, LLC									9,464	18,369	(22,381)
Income (loss) before income taxes									39,760	71,302	(53,747)
Income tax benefit (expense)									(333)	1,319	7,912
Net income (loss)	13,886	$ (5,822)	$ 16,178	$ 15,185	19,005	$ 18,824	$ 7,006	$ 27,786	39,427	72,621	(45,835)
Assets	1,460,734				1,347,407				1,460,734	1,347,407	1,145,433
Goodwill	153,397				107,187				153,397	107,187	105,732
Payments to Acquire Property, Plant, and Equipment									48,439	31,708	24,833
Refining
Revenues									3,210,067
Logistics
Revenues									125,743
Retail
Revenues									441,040
Operating Segments | Refining
Revenues									3,210,067	2,319,638	1,702,463
Cost of revenues (excluding depreciation)									2,957,995	2,062,804	1,580,014
Operating expense (excluding depreciation)									146,320	141,065	115,818
Depreciation, depletion, and amortization									32,483	29,753	17,565
General and administrative expense (excluding depreciation)									0	0	0
Acquisition and integration costs									0	0	0
Operating income (loss)									73,269	86,016	(10,934)
Assets	968,623				949,588				968,623	949,588	772,438
Goodwill	53,264				53,264				53,264	53,264	53,037
Payments to Acquire Property, Plant, and Equipment									25,601	10,433	15,106
Operating Segments | Logistics
Revenues									125,743	121,470	102,779
Cost of revenues (excluding depreciation)									77,712	66,301	65,439
Operating expense (excluding depreciation)									7,782	15,010	11,239
Depreciation, depletion, and amortization									6,860	6,166	4,679
General and administrative expense (excluding depreciation)									0	0	0
Acquisition and integration costs									0	0	0
Operating income (loss)									33,389	33,993	21,422
Assets	130,138				118,304				130,138	118,304	120,443
Goodwill	37,373				37,373				37,373	37,373	36,145
Payments to Acquire Property, Plant, and Equipment									13,055	8,836	1,344
Operating Segments | Retail
Revenues									441,040	326,076	290,402
Cost of revenues (excluding depreciation)									333,664	249,097	220,545
Operating expense (excluding depreciation)									61,182	45,941	41,291
Depreciation, depletion, and amortization									8,962	6,338	6,372
General and administrative expense (excluding depreciation)									0	0	0
Acquisition and integration costs									0	0	0
Operating income (loss)									37,232	24,700	22,194
Assets	201,848				128,966				201,848	128,966	122,570
Goodwill	62,760				16,550				62,760	16,550	16,550
Payments to Acquire Property, Plant, and Equipment									6,101	7,073	4,375
Intersegment Eliminations
Gross Profit									(365,500)	(325,200)	(271,900)
Intersegment Eliminations | Corporate, Eliminations and Other
Revenues									(366,122)	(324,118)	(230,599)
Cost of revenues (excluding depreciation)									(366,255)	(323,575)	(229,659)
Operating expense (excluding depreciation)									0	0	1,023
Depreciation, depletion, and amortization									4,337	3,732	3,001
General and administrative expense (excluding depreciation)									47,426	46,078	42,073
Acquisition and integration costs									10,319	395	5,294
Operating income (loss)									(61,949)	(50,748)	(52,331)
Assets	160,125				150,549				160,125	150,549	129,982
Goodwill	$ 0				$ 0				0	0	0
Payments to Acquire Property, Plant, and Equipment									$ 3,682	$ 5,366	$ 4,008