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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2018

Business Combinations [Abstract]

Schedule of useful lives of property, plant and equipment

Depreciation is calculated using the straight-line method over the estimated useful lives of the property, plant and equipment, which are:

	Years
Land improvements	10
Plant and buildings	5-15
Real estate properties	10-40
Railroad and sidings	30
Vehicles	3-5
Machinery, equipment and tooling	3-15
Wellsite proppant storage solutions	5-15
Furniture and fixtures	3-10
Deferred mining costs	3

The acquisition cost has been allocated over the assets as set forth below.

Machinery, equipment and tooling	$	1,478
Plant and building	1,407
Railroad and sidings	9,926
Land improvements	2,738
Total assets acquired	$	15,549

Net property, plant and equipment consists of:

	December 31,
	2018				2017
Machinery, equipment and tooling	$	14,858			$	7,802
Wellsite proppant storage solutions	5,286				—
Vehicles	1,955				1,546
Furniture and fixtures	1,140				720
Plant and building	158,882				81,561
Real estate properties	4,601				4,432
Railroad and sidings	27,347				10,254
Land and land improvements	27,167				16,378
Asset retirement obligation	16,469				8,408
Mineral properties	10,075				9,878
Deferred mining costs	1,806				657
Construction in progress	21,619				56,493
	291,205				198,129
Less: accumulated depreciation and depletion	42,809				26,367
Total property, plant and equipment, net	$	248,396			$	171,762

Schedule of consideration transferred

The table below presents the calculation of the total purchase consideration:

Base price - cash	$	30,000
Contingent consideration – earnout	9,200
Working capital adjustment	(122		)
Total purchase consideration	$	39,078

Schedule of assets acquired and liabilities assumed

The Company’s allocation of the purchase price in connection with the acquisition was calculated as follows.

		Fair Value				Useful Life
Assets Acquired
Accounts receivable		$	112
Inventory		1,700
Prepaid expenses and other current assets		126
Total current assets acquired		$	1,938
Property, plant and equipment		740
Customer relationships		270				1 year
Developed technology		18,800				13 years
Trade name		900				Indefinite
Goodwill		16,935
Other assets		225
Total non-current assets acquired		37,870
Total assets acquired		$	39,808
Liabilities Assumed
Accounts payable		$	331
Accrued and other expenses		399
Total liabilities assumed		730
Estimated fair value of net assets acquired		$	39,078

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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