Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Revenues	$ 391,141	$ 372,914
Operating expenses:
Depreciation, depletion, and amortization	29,408	29,408
Selling, general and administrative	31,947	24,770
Total operating expenses	355,209	336,128
Operating income	35,932	36,786
Other (expense) income:
Loss from partially owned entities	(139)	(27)
Interest expense	(24,495)	(27,727)
Interest income	623	257
Loss on debt extinguishment and modification	(21,385)	(171)
Foreign currency exchange gain (loss)	680	(2,773)
Other income (expense), net	56	(467)
(Loss) income before income tax	(8,728)	5,878
Income tax (expense) benefit:
Current	(1,067)	(2,242)
Deferred	1,156	748
Total income tax benefit (expense)	89	(1,494)
Net (loss) income	(8,639)	4,384
Less distributions on preferred shares of beneficial interest - Series A	(1)	0
Less distributions on preferred shares of beneficial interest - Series B	(1,817)	(7,109)
Less accretion on preferred shares of beneficial interest – Series B	0	(220)
Net loss attributable to common shares of beneficial interest	$ (10,457)	$ (2,945)
Weighted average common shares outstanding – basic (in shares)	124,433	69,931
Weighted average common shares outstanding – diluted (in shares)	124,433	69,931
Net loss per common share of beneficial interest - basic (in USD per share)	$ (0.08)	$ (0.04)
Net loss per common share of beneficial interest - diluted (in USD per share)	(0.08)	(0.04)
Distributions declared per common share of beneficial interest (in USD per share)	$ 0.15	$ 0.07
Operating Segments
Revenues:
Revenues	$ 391,141	$ 372,914
Operating expenses:
Operating income	97,287	90,964
Operating Segments | Rent, storage, and warehouse services revenues
Revenues:
Revenues	286,517	275,807
Operating expenses:
Cost of operations	196,947	192,287
Operating income	89,570	83,520
Operating Segments | Third-party managed services
Revenues:
Revenues	63,876	58,367
Operating expenses:
Cost of operations	60,099	55,379
Operating income	3,777	2,988
Operating Segments | Transportation services
Revenues:
Revenues	38,345	36,181
Operating expenses:
Cost of operations	34,751	32,628
Operating income	3,594	3,553
Operating Segments | Other revenues
Revenues:
Revenues	2,403	2,559
Operating expenses:
Cost of operations	2,057	1,656
Operating income	$ 346	$ 903