Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenue	$ 789,540	$ 807,119	$ 1,409,341	$ 1,370,498
Gross (loss) profit	(52,404)	80,369	(11,926)	136,652
Segment assets	2,558,141	2,556,325	2,558,141	2,556,325	$ 2,476,601
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	834,903	852,368	1,462,294	1,423,347
Gross (loss) profit	(52,404)	80,369	(11,926)	136,652
Depreciation, depletion and amortization	30,231	25,037	56,318	38,100
Segment assets	1,178,033	1,247,273	1,178,033	1,247,273
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	(45,363)	(45,249)	(52,953)	(52,849)
Transportation [Member]
Segment Reporting Information [Line Items]
Total revenue	403,978	502,711	742,188	861,856
Transportation [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	403,978	502,711	742,188	861,856
Gross (loss) profit	(99,879)	35,963	(78,629)	67,425
Depreciation, depletion and amortization	4,845	5,373	8,485	10,393
Segment assets	350,679	426,698	350,679	426,698
Transportation [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	0	0	0	0
Water [Member]
Segment Reporting Information [Line Items]
Total revenue	112,831	51,618	212,086	91,659
Water [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	112,831	51,618	212,086	91,659
Gross (loss) profit	11,263	5,450	19,382	17,014
Depreciation, depletion and amortization	10,931	4,378	21,987	4,884
Segment assets	302,294	359,141	302,294	359,141
Water [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	0	0	0	0
Specialty [Member]
Segment Reporting Information [Line Items]
Total revenue	175,084	151,842	315,777	270,313
Specialty [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	175,084	151,842	315,777	270,313
Gross (loss) profit	22,210	21,476	37,077	37,212
Depreciation, depletion and amortization	8,401	9,212	14,213	11,339
Segment assets	148,441	157,313	148,441	157,313
Specialty [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	0	0	0	0
Materials [Member]
Segment Reporting Information [Line Items]
Total revenue	97,647	100,948	139,290	146,670
Materials [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	143,010	146,197	192,243	199,519
Gross (loss) profit	14,002	17,480	10,244	15,001
Depreciation, depletion and amortization	6,054	6,074	11,633	11,484
Segment assets	376,619	304,121	376,619	304,121
Materials [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	$ (45,363)	$ (45,249)	$ (52,953)	$ (52,849)