Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Disclosures regarding our reportable segments with reconciliations to consolidated totals for the three years ended December 31, 2016, are presented below:

	Year Ended
	December 31, 2016			December 31, 2015			December 31, 2014
	(In thousands)
Operating Results:
Logistics:
Revenues: Affiliate	$	178,600		$	161,536		$	137,986
Revenues: Third-party	2,911			2,771			2,718
Total revenues	181,511			164,307			140,704
Wholesale:
Revenues: Affiliate	523,557			624,787			873,589
Revenues: Third-party	1,517,650			1,810,773			2,487,595
Total revenues	2,041,207			2,435,560			3,361,184
Consolidated revenues	$	2,222,718		$	2,599,867		$	3,501,888
Operating income:
Logistics	$	43,863		$	30,880		$	19,332
Wholesale	39,384			38,159			28,234
Other	(13,152		)	(13,245		)	(11,959		)
Operating income	70,095			55,794			35,607
Other income (expense), net	(26,042		)	(23,041		)	(2,240		)
Consolidated income before income taxes	$	44,053		$	32,753		$	33,367
Depreciation and amortization:
Logistics	$	33,710		$	30,898		$	25,041
Wholesale	5,532			4,486			3,893
Consolidated depreciation and amortization	$	39,242		$	35,384		$	28,934
Capital expenditures:
Logistics	$	27,894		$	61,204		$	71,470
Wholesale	2,414			6,421			7,868
Consolidated capital expenditures	$	30,308		$	67,625		$	79,338
Total assets:
Logistics	$	412,551		$	413,847		$	385,918
Wholesale	151,669			147,597			160,158
Other	16,634			48,778			56,488
Consolidated total assets	$	580,854		$	610,222		$	602,564