Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Direct Financing Lease, Revenue	$ 3,873	$ 3,937	$ 11,789	$ 12,517
Revenues	562,410	633,996	1,804,582	1,891,399
Expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	377,174	468,871	1,274,126	1,377,092
Operating	73,619	64,835	214,823	224,871
General and administrative	29,662	21,904	84,729	71,267
Depreciation and amortization	61,489	53,598	184,536	155,889
Loss (gain) on Disposal or Impairment	(373)	(383)	7,119	(2,125)
Total expenses	541,571	608,825	1,765,333	1,826,994
Earnings from equity method investments	9,065	14,528	35,711	41,493
Operating income	29,904	39,699	74,960	105,898
Other expenses (income), net:
Interest expense	39,663	35,318	115,225	113,683
Foreign currency transaction loss (gain)	801	(983)	(476)	4,625
Other income, net	(1,075)	(400)	(3,401)	(1,883)
Total other expenses, net	39,389	33,935	111,348	116,425
Income (loss) before income taxes	(9,485)	5,764	(36,388)	(10,527)
Income tax expense (benefit)	(4,019)	(2,697)	(14,710)	16,773
Net income (loss)	(5,466)	8,461	(21,678)	(27,300)
Net Income (Loss) Attributable to Noncontrolling Interest	7,042	0	23,256	0
Net Income (Loss) Attributable to Parent	(12,508)	8,461	(44,934)	(27,300)
Less: cumulative preferred stock dividends	6,773	6,317	19,971	17,360
Subsidiary Preferred Stock Dividends, Income Statement Impact	2,604	0	6,288	0
Accretion of Subsidiary Preferred Stock to redemption Value	255	0	14,241	0
Net income (loss) attributable to common shareholders	(22,140)	2,144	(85,434)	(44,660)
Other comprehensive income (loss), net of income taxes	(6,317)	3,352	6,837	27,703
Comprehensive income (loss)	(11,783)	11,813	(14,841)	403
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(4,605)	0	8,993	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (14,220)	$ 11,813	$ (47,090)	$ 403
Net income (loss) per common share (Note 15):
Basic	$ (0.28)	$ 0.03	$ (1.09)	$ (0.57)
Diluted	$ (0.28)	$ 0.03	$ (1.09)	$ (0.57)
Product [Member]
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax	$ 399,679	$ 487,693	$ 1,336,914	$ 1,421,751
Service [Member]
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax	98,965	86,122	278,974	282,368
Storage Revenue [Member]
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax	41,144	41,914	124,001	126,601
Other revenue [Member]
Revenues:
Revenue from Contract with Customer, Excluding Assessed Tax	$ 18,749	$ 14,330	$ 52,904	$ 48,162