Voluntary Early Retirement Program Expense

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- Definition

Amount of increase in lease obligation from new lease.

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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- Definition

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Segment Reporting - Information Concerning Business Activities (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment									3
Revenues	$ 431,339	$ 450,307	$ 484,433	$ 445,168	$ 442,649	$ 467,891	$ 452,417	$ 387,256	$ 1,811,247	$ 1,750,213	$ 1,322,060
Operating earnings (losses)									7,800	1,408	1,502
Depreciation, depletion and amortization									16,641	10,654	13,599
Property and equipment additions									35,743	11,731	2,644
Inventory liquidation gains and valuation (losses)					(7,900)					(7,900)
Voluntary early retirement program expense											400
Property and equipment acquired under capital leases									4,148	2,898	1,808
Leasehold Improvements
Segment Reporting Information [Line Items]
Property and equipment additions									22	13
Marketing
Segment Reporting Information [Line Items]
Revenues									1,748,056	1,694,437	1,267,275
Depreciation, depletion and amortization									8,741	6,384	7,812
Property and equipment additions									7,249	1,540	468
Inventory liquidation gains and valuation (losses)	$ 3,700				$ (5,400)				3,700	(5,400)	3,300
Transportation
Segment Reporting Information [Line Items]
Revenues									63,191	55,776	53,358
Depreciation, depletion and amortization									7,900	4,270	5,364
Property and equipment additions									28,472	10,178	351
Oil and Gas and Other
Segment Reporting Information [Line Items]
Revenues									0	0	1,427
Depreciation, depletion and amortization									0	0	423
Property and equipment additions									22	13	1,825
Operating Segments
Segment Reporting Information [Line Items]
Operating earnings (losses)									17,998	10,345	11,209
Operating Segments \| Marketing
Segment Reporting Information [Line Items]
Operating earnings (losses)									16,099	7,008	11,700
Operating Segments \| Transportation
Segment Reporting Information [Line Items]
Operating earnings (losses)									1,899	3,337	(544)
Operating Segments \| Oil and Gas and Other
Segment Reporting Information [Line Items]
Operating earnings (losses)									$ 0	$ 0	$ 53