U.S. Concrete (USCR) 10-Q 7 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	US CONCRETE INC
Entity Central Index Key	1,073,429
Current Fiscal Year End	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		16,817,964
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 21,511	$ 22,581
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	247,634	214,221
Inventories	48,784	48,085
Prepaid expenses	8,281	5,297
Other receivables	12,197	19,191
Other current assets	7,282	2,310
Total current assets	345,689	311,685
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	674,192	636,268
Goodwill	217,316	204,731
Intangible assets, net	122,187	118,123
Other assets	7,191	5,327
Total assets	1,366,575	1,276,134
Current liabilities:
Accounts payable	130,279	117,070
Accrued liabilities	85,928	65,420
Current maturities of long-term debt	28,753	25,951
Total current liabilities	244,960	208,441
Long-term debt, net of current maturities	721,801	667,385
Other long-term obligations and deferred credits	78,523	93,341
Deferred income taxes	3,493	4,825
Total liabilities	1,048,777	973,992
Commitments and contingencies (Note 13)
Equity:
Preferred stock	0	0
Common stock	18	18
Additional paid-in capital	324,243	319,016
Accumulated deficit	(1,377)	(13,784)
Treasury stock, at cost	(26,668)	(24,799)
Total shareholders' equity	296,216	280,451
Non-controlling interest	21,582	21,691
Total equity	317,798	302,142
Total liabilities and equity	$ 1,366,575	$ 1,276,134

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Trade accounts receivable, allowances	$ 5,399	$ 5,785
Property, plant and equipment, accumulated depreciation, depletion, and amortization	$ 205,249	$ 178,168

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 404,200	$ 340,926	$ 731,987	$ 640,059
Cost of goods sold before depreciation, depletion and amortization	320,238	263,574	587,470	499,333
Selling, general and administrative expenses	31,875	30,200	64,151	56,017
Depreciation, depletion and amortization	22,142	16,350	42,717	32,209
Change in value of contingent consideration	(1,626)	720	(1,258)	1,328
Impairment of assets	1,299	0	1,299	0
Gain on sale of assets, net	(371)	(198)	(561)	(390)
Operating income	30,643	30,280	38,169	51,562
Interest expense, net	11,514	10,368	22,823	20,510
Derivative loss	0	(15,766)	0	(13,910)
Other income, net	(1,441)	(596)	(3,060)	(1,304)
Income from continuing operations before income taxes	20,570	4,742	18,406	18,446
Income tax expense	4,292	6,911	5,944	13,613
Income (loss) from continuing operations	16,278	(2,169)	12,462	4,833
Loss from discontinued operations, net of taxes	0	(180)	0	(302)
Net income (loss)	16,278	(2,349)	12,462	4,531
Less: Net income attributable to non-controlling interest	(13)	0	(55)	0
Net income (loss) attributable to U.S. Concrete	$ 16,265	$ (2,349)	$ 12,407	$ 4,531
Basic income (loss) per share attributable to U.S. Concrete:
Income (loss) from continuing operations (in dollars per share)	$ 0.99	$ (0.14)	$ 0.75	$ 0.31
Loss from discontinued operations, net of taxes (in dollars per share)	0	(0.01)	0	(0.02)
Net income (loss) per share – basic (in dollars per share)	0.99	(0.15)	0.75	0.29
Diluted income (loss) per share attributable to U.S. Concrete:
Income (loss) from continuing operations (in dollars per share)	0.99	(0.14)	0.75	0.29
Loss from discontinued operations, net of taxes (in dollars per share)	0	(0.01)	0	(0.02)
Net income (loss) per share – diluted (in dollars per share)	$ 0.99	$ (0.15)	$ 0.75	$ 0.27
Weighted average shares outstanding:
Basic (in shares)	16,477	15,703	16,450	15,601
Diluted (in shares)	16,506	15,703	16,518	16,531
Income Amounts Attributable to Parent, Disclosures [Abstract]
Income (loss) from continuing operations attributable to U.S. Concrete	$ 16,265	$ (2,169)	$ 12,407	$ 4,833
Loss from discontinued operations, net of taxes	$ 0	$ (180)	$ 0	$ (302)

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF TOTAL EQUITY - 6 months ended Jun. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Total Shareholders' Equity (Deficit)	Non-controlling Interest
BALANCE, beginning of period (in shares) at Dec. 31, 2017		16,652
BALANCE, begging of period at Dec. 31, 2017	$ 302,142	$ 18	$ 319,016	$ (13,784)	$ (24,799)	$ 280,451	$ 21,691
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense	5,149		5,149			5,149
Restricted stock vesting (in shares)		6
Restricted stock vesting	0					0
Restricted stock grants, net of cancellations (in shares)		180
Restricted stock grants, net of cancellations	0					0
Stock options exercised (in shares)		6
Stock options exercised	78		78			78
Other treasury share purchases (in shares)		(28)
Other treasury share purchases	(1,869)				(1,869)	(1,869)
Measurement period adjustments for prior year business combinations	(125)						(125)
Payments to noncontrolling interests	(39)						(39)
Net income	12,462			12,407		12,407	55
BALANCE, end of period (in shares) at Jun. 30, 2018		16,816
BALANCE, begging of period` at Jun. 30, 2018	$ 317,798	$ 18	$ 324,243	$ (1,377)	$ (26,668)	$ 296,216	$ 21,582

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 12,462	$ 4,531
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	42,717	32,209
Amortization of debt issuance costs	909	1,041
Amortization of discount on long-term incentive plan and other accrued interest	285	374
Amortization of premium on long-term debt	(775)	(775)
Derivative loss	0	13,910
Change in value of contingent consideration	(1,258)	1,328
Net gain on disposal of assets	(561)	(390)
Impairment of assets	1,299	0
Deferred income taxes	(177)	4,816
Provision for doubtful accounts and customer disputes	2,007	1,896
Stock-based compensation	5,149	4,253
Unrealized foreign exchange gain	(67)	0
Changes in assets and liabilities, excluding effects of acquisitions:
Accounts receivable	(35,523)	(12,856)
Inventories	(25)	(1,942)
Prepaid expenses and other current assets	2,434	98
Other assets and liabilities	(1,276)	(22)
Accounts payable and accrued liabilities	20,260	4,684
Net cash provided by operating activities	47,860	53,155
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(20,837)	(18,692)
Payments for acquisitions, net of cash acquired	(61,111)	(32,836)
Proceeds from disposals of property, plant and equipment	1,085	841
Proceeds from disposal of businesses	158	873
Insurance proceeds from property loss claims	2,134	0
Net cash used in investing activities	(78,571)	(49,814)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings	228,613	0
Repayments of revolver borrowings	(177,213)	0
Proceeds from issuance of debt	0	211,500
Proceeds from exercise of stock options and warrants	78	494
Payments of other long-term obligations	(3,540)	(4,536)
Payments for other financing	(13,709)	(8,778)
Debt issuance costs	0	(3,231)
Other treasury share purchases	(1,869)	(2,825)
Payments to non-controlling interest	249	0
Other proceeds	464	0
Net cash provided by financing activities	32,575	192,624
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	(98)	0
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	1,766	195,965
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	22,581	75,774
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	24,347	271,739
Supplemental Disclosure of Cash Flow Information:
Cash paid for interest	22,667	20,155
Cash paid for income taxes	2,678	12,302
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Capital expenditures funded by capital leases and promissory notes	20,046	24,393
Fair value contingent consideration	$ 893	$ 0

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The accompanying unaudited condensed consolidated financial statements include the accounts of U.S. Concrete, Inc. and its subsidiaries (collectively, "we," "us," "our," the "Company," or "U.S. Concrete") and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") for reporting interim financial information. Some information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP") have been condensed or omitted pursuant to the SEC’s rules and regulations. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2017 (the " 2017 Form 10-K"). In the opinion of our management, all material adjustments necessary to state fairly the information in our unaudited condensed consolidated financial statements have been included. All adjustments are of a normal or recurring nature. All amounts are presented in United States dollars, unless otherwise noted. Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year. The preparation of financial statements and accompanying notes in conformity with U.S. GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Estimates and assumptions that we consider significant in the preparation of our financial statements include those related to our allowance for doubtful accounts, business combinations, goodwill, intangible assets, valuation of contingent consideration, accruals for self-insurance programs, income taxes, the valuation of inventory and the valuation and useful lives of property, plant and equipment. Certain reclassifications have been made to prior period balances to conform with the current year presentation.

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS AND SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2018
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS AND SIGNIFICANT ACCOUNTING POLICIES	RECENT ACCOUNTING PRONOUNCEMENTS AND SIGNIFICANT ACCOUNTING POLICIES Standards/Updates Adopted This Year Revenue Recognition. In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance that outlines a single comprehensive model for accounting for revenue arising from contracts with customers, which supersedes most of the existing revenue recognition guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures. We adopted this guidance and related amendments as of January 1, 2018, applying the modified retrospective transition approach to all contracts. Adoption of the new guidance did not result in changes in the amount of revenue recognized or the timing of when such revenue is recognized. Clarification of the Definition of a Business in Business Combinations. In January 2017, the FASB issued an update under business combinations in an effort to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The amendments in this update provide a screen to determine when a set of assets is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. The adoption of this standard did not have a material impact on our financial condition and results of operations. Classification of Certain Cash Receipts and Cash Payments. In August 2016, the FASB issued guidance to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Adoption of this standard did not result in any material changes to our statements of cash flows. Restricted Cash in the Statement of Cash Flows. In November 2016, the FASB issued guidance to reduce diversity in the presentation of restricted cash in the statement of cash flows. The standard has certain disclosure requirements related to restricted cash and requires that restricted cash be included with cash balances in the statement of cash flows. Adoption of this standard did not have a material impact on our statement of cash flows. Standards/Updates Not Yet Adopted Lease Accounting. In February 2016, the FASB issued a new lease accounting standard intended to increase transparency and comparability among organizations by reorganizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, lessees will be required to recognize a right-of-use asset and a lease liability, measured on a discounted basis, at the commencement date for all leases with terms greater than twelve months. Additionally, this guidance will require disclosures to help investors and other financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases, including qualitative and quantitative requirements. We expect to adopt the guidance using the recently approved transition approach that permits application of the new standard at the adoption date instead of the earliest comparative period presented in the financial statements, with a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We have established a cross-functional coordinated team to implement the standard. The implementation process includes reviewing all leases, performing a completeness assessment over the lease population, analyzing the practical expedients and identifying a new lease accounting technology system. We will also evaluate our processes and internal controls to meet the new accounting, reporting and disclosure requirements. This guidance will be effective for us beginning with the first quarter of 2019. Although we have not yet completed our evaluation of the impact on our financial statements, we expect that our adoption of the standard will have a significant impact on our consolidated balance sheet. For a description of our significant accounting policies, see Note 1 of the consolidated financial statements in our 2017 Form 10-K.

REVENUE

REVENUE	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
REVENUE	REVENUE We derive substantially all of our revenue from the production and delivery of ready-mixed concrete, aggregates and related building materials. Revenue from the sale of these products is recognized when control passes to the customer, which generally occurs at the point in time when products are delivered. We do not deliver product unless we have an order or other documentation authorizing delivery to our customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods. Sales and other taxes we collect concurrently with revenue-producing activities are excluded from revenue. Incidental items, such as mix formulation and testing services that are immaterial in the context of the revenue contract and completed in close proximity to the revenue-producing activities, are recorded within cost of goods sold as incurred. We generally do not provide post-delivery services, such as paving or finishing. Customer dispute costs are recorded as a reduction of revenue at the end of each period and are estimated by using a combination of historical customer experience and a customer-by-customer analysis. Amounts billed to customers for delivery costs are classified as a component of total revenue. Our payment terms vary by the type and location of our customer and the products offered. The term between invoicing and when payment is due is not significant. As permitted under U.S. GAAP, we have elected not to assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between payment by the customer and the transfer of the promised goods to the customer will be one year or less. See Note 14 for disaggregation of revenue by segment and product as we believe that best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. We do not have any customer contracts that meet the definition of unsatisfied performance obligations in accordance with U.S. GAAP.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS The accounting for business combinations requires the significant use of estimates and is based on information that was available to management at the time these condensed consolidated financial statements were prepared. The estimates used for determining the fair value of certain liabilities related to acquisitions are considered Level 3 inputs (as defined in Note 8 ). We utilized recognized valuation techniques, including the income approach, sales approach, and cost approach to value the net assets acquired. See Note 8 for additional information related to contingent consideration obligations, including maximum payout amounts and how the fair value was estimated. Any changes to the provisional business combination accounting will be made as soon as practical, but no later than one year from the respective acquisition dates. 2018 Acquisitions We completed three acquisitions during the six months ended June 30, 2018 that expanded our ready-mixed concrete operations in the Atlantic Region (which we define to include New York, New Jersey, Washington, D.C. and Pennsylvania), and expanded our ready-mixed concrete and aggregate products operations in West Texas. The aggregate fair value consideration for these acquisitions, which were all accounted for as business combinations, was $60.8 million . The acquisitions included the assets and certain liabilities of the following: • On Time Ready Mix, Inc. (" On Time ") located in Flushing, New York on January 10, 2018 ; • Cutrell Trucking, LLC., Dumas Concrete, LLC., Pampa Concrete Co., Inc., Panhandle Concrete, LLC., Texas Sand & Gravel Co., Inc. (collectively " Golden Spread ") located in Amarillo, Texas on March 2, 2018 ; and • One individually immaterial ready-mixed concrete operation in our Atlantic Region on March 5, 2018. The aggregate fair value consideration for these three acquisitions included $ 59.9 million in cash and fair value contingent consideration of $ 0.9 million . We funded the cash portion of the 2018 acquisitions through a combination of cash on hand and borrowings under our Revolving Facility (as defined in Note 7 ). The combined assets acquired through these 2018 acquisitions included 140 mixer trucks, 19 ready-mix concrete plants and one aggregates facility. During the three months ended June 30, 2018, we incurred no transaction costs to effect the 2018 acquisitions. During the six months ended June 30, 2018 , we incurred $0.5 million of transaction costs to effect the 2018 acquisitions, which are included in selling and general administrative expenses in our condensed consolidated statements of operations. Our accounting for the 2018 business combinations is preliminary. We expect to record adjustments as we accumulate information needed to estimate the fair value of assets acquired and liabilities assumed, including working capital balances, estimated fair value of identifiable intangible assets, property, plant and equipment, total consideration and goodwill. The following table presents the total consideration for the 2018 acquisitions and the preliminary amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the respective acquisition dates (in thousands): 2018 Acquisitions Inventory $ 674 Other current assets 77 Property, plant and equipment 30,235 Definite-lived intangible assets 15,450 Total assets acquired 46,436 Total liabilities assumed 153 Goodwill 14,556 Total consideration (fair value) (1) $ 60,839 (1) Included $0.9 million of contingent consideration. 2017 Acquisitions We completed eight acquisitions during 2017 that expanded our ready-mixed concrete and aggregate products operations in our Atlantic Region, expanded our ready-mixed concrete operations in Northern California and facilitated vertical integration on the West Coast. The aggregate fair value consideration for these acquisitions, which were all accounted for as business combinations, was $327.9 million . The acquisitions included the assets and certain liabilities of the following: • Corbett Aggregate Companies, LLC. (" Corbett ") located in Quinton, New Jersey on April 7, 2017 ; • Harbor Ready-Mix (" Harbor ") located in Redwood City, California on September 29, 2017 ; • A-1 Materials, Inc. (" A-1 ”) and L.C. Frey Company, Inc. ("Frey") (collectively “A-1/Frey”) located in San Carlos, California on September 29, 2017 ; • Action Supply Co., Inc. (" Action Supply ") located in Philadelphia, Pennsylvania on September 29, 2017 ; • Polaris Materials Corporation (" Polaris ") located in British Columbia, Canada on November 17, 2017 ; and • Three individually immaterial acquisitions in December 2017 consisting of two ready-mixed concrete operations and a software company. The aggregate fair value consideration for these eight acquisitions included $298.4 million in cash, $5.5 million in payments deferred over a four -year period, and fair value contingent consideration of $24.0 million . The combined assets acquired through these 2017 acquisitions included 409 acres of land, two aggregate facilities with approximately 130 million tons of proven aggregates reserves, 51 mixer trucks, seven ready-mix concrete plants and four aggregates distribution terminals. We funded the cash portion of the acquisitions through a combination of cash on hand and borrowings under our Revolving Facility. Prior to the completion of the Polaris acquisition, we received two promissory notes from Polaris aggregating $18.1 million Canadian dollars, which were reclassified as intercompany loans upon completion of the acquisition and have been eliminated from our consolidated balance sheet. During the three and six months ended June 30, 2017, we incurred $0.5 million and $0.7 million of transaction costs, respectively, to effect the 2017 acquisitions, which are included in selling and general administrative expenses in our condensed consolidated statements of operations. Our accounting for the 2017 business combinations is preliminary, except for the Corbett acquisition. We expect to record adjustments as we accumulate information needed to estimate the fair value of assets acquired and liabilities assumed, including working capital balances, estimated fair value of identifiable intangible assets, property, plant and equipment, adjustments related to determination of the conclusion of tax attributes as of the acquisition date, total consideration and goodwill. The following table presents the total consideration for the 2017 acquisitions and the preliminary amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the respective acquisition dates (in thousands): Polaris 2017 Acquisitions (Excluding Polaris) Cash $ 20,678 $ — Accounts receivable (1) 4,561 1,110 Inventory 6,022 695 Other current assets 1,522 48 Property, plant and equipment 199,316 63,221 Other long-term assets 896 — Definite-lived intangible assets — 8,331 Total assets acquired 232,995 73,405 Current liabilities (2) 26,465 1,081 Other long-term liabilities 2,999 62 Total liabilities assumed 29,464 1,143 Non-controlling interest 21,442 — Goodwill 60,679 12,837 Total consideration (fair value) (3) $ 242,768 $ 85,099 (1) Except for Polaris, the aggregate fair value of the 2017 acquisitions' acquired accounts receivable approximated the aggregate gross contractual amount. The fair value of Polaris's acquired accounts receivable was $4.6 million , which represented an aggregate gross contractual amount of $4.9 million , less estimated amounts not expected to be collected. (2) Current liabilities for Polaris included $14.2 million payable to the Company, which was eliminated in consolidation. (3) Included $29.5 million of deferred and contingent consideration for acquisitions other than Polaris. Acquired Intangible Assets and Goodwill A summary of the intangible assets acquired in 2018 and 2017 and their estimated useful lives is as follows (in thousands): Weighted Average Amortization Period (In Years) Fair Value At Acquisition Date Customer relationships 6.86 $ 21,171 Non-compete agreements 5.00 2,226 Favorable contract 3.67 384 Total $ 23,781 As of June 30, 2018 , the estimated future aggregate amortization expense of definite-lived intangible assets from the 2018 and 2017 acquisitions was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 1,946 2019 3,892 2020 3,875 2021 3,690 2022 3,735 Thereafter 4,965 Total $ 22,103 During the three and six months ended June 30, 2018 , we recorded $1.1 million and $1.4 million of amortization expense, respectively, related to these intangible assets. We recorded no amortization expense related to these intangible assets during the three and six months ended June 30, 2017 . The goodwill ascribed to our acquisitions is related to the synergies we expect to achieve with expansion in the markets in which we already operate as well as entry into new metropolitan areas of our existing geographic markets. The goodwill relates to our ready-mixed concrete, aggregate products and other non-reportable segments. See Note 6 for the allocation of goodwill to our segments. We expect the goodwill to be deductible for tax purposes. See Note 9 for additional information regarding income taxes. Actual Impact of Acquisitions During the three months ended June 30, 2018 , we recorded approximately $46.9 million of revenue and $6.2 million of operating income in our condensed consolidated statements of operations related to the 2017 and 2018 acquisitions following their respective dates of acquisition. During the six months ended June 30, 2018 , we recorded approximately $77.2 million of revenue and $6.1 million of operating income in our condensed consolidated statements of operations related to the 2017 and 2018 acquisitions following their respective dates of acquisition. During both the three and six months ended June 30, 2017 , we recorded approximately $0.5 million of revenue and $0.5 million of operating income in our condensed consolidated statements of operations related to the 2017 acquisitions. Unaudited Pro Forma Impact of Acquisitions The information presented below reflects the unaudited pro forma combined financial results for the acquisitions completed during 2018 and 2017 , excluding the individually immaterial acquisitions in 2018 and 2017 as described above, as historical financial results for these operations were not material and were impractical to obtain from the former owners. All other acquisitions have been included and represent our estimate of the results of operations as if the 2018 acquisitions had been completed on January 1, 2017 and the 2017 acquisitions had been completed on January 1, 2016 (in thousands, except per share information): Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue from continuing operations $ 404,200 $ 378,692 $ 746,725 $ 720,709 Net income (loss) attributable to U.S. Concrete $ 16,440 $ (2,117 ) $ 13,794 $ 5,232 Net income (loss) per share attributable to U.S. Concrete - basic $ 1.00 $ (0.13 ) $ 0.84 $ 0.34 Net income (loss) per share attributable to U.S. Concrete - diluted $ 1.00 $ (0.13 ) $ 0.84 $ 0.32 The above pro forma results are unaudited and were prepared based on the historical U.S. GAAP results of the Company and the historical results of the acquired companies for which financial information was available, based on data provided by the former owners. These results are not necessarily indicative of what the Company's actual results would have been had the 2018 acquisitions occurred on January 1, 2017, and the 2017 acquisitions occurred on January 1, 2016. The unaudited pro forma net income attributable to U.S. Concrete and per share amounts above reflect the following adjustments (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Increase in intangible amortization expense $ — $ (902 ) $ (523 ) $ (1,804 ) Increase in depreciation expense — (3,325 ) — (4,500 ) Exclusion of buyer transaction costs 159 413 851 644 Exclusion of seller transaction costs — — — 3,224 Increase in expenses related to conversions from IFRS (1) to U.S. GAAP — (44 ) — (113 ) Decrease (increase) in income tax expense 16 (923 ) (474 ) (1,416 ) Increase in non-controlling loss — (143 ) — (280 ) (1) IFRS is defined as International Financial Reporting Standards as issued by the International Accounting Standards Board. The unaudited pro forma results do not reflect any operational efficiencies or potential cost savings that may occur as a result of consolidation of the operations.

INVENTORIES

INVENTORIES	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories were as follows (in thousands): June 30, 2018 December 31, 2017 Raw materials $ 44,288 $ 44,238 Building materials for resale 2,998 2,192 Other 1,498 1,655 Total inventories $ 48,784 $ 48,085

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLES	GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill The changes in goodwill by reportable segment from December 31, 2017 to June 30, 2018 were as follows (in thousands): Ready-Mixed Concrete Segment Aggregate Products Segment Other Non-Reportable Segments Total Goodwill, gross at December 31, 2017 $ 139,834 $ 57,438 $ 13,212 $ 210,484 2018 acquisitions (1) 13,697 — 859 14,556 Measurement period adjustments for prior year business combinations (2) (340 ) 6,911 (8,542 ) (1,971 ) Goodwill, gross at June 30, 2018 153,191 64,349 5,529 223,069 Accumulated impairment at December 31, 2017 and June 30, 2018 (4,414 ) (1,339 ) — (5,753 ) Goodwill, net at June 30, 2018 $ 148,777 $ 63,010 $ 5,529 $ 217,316 (1) During the three months ended June 30, 2018 , we recorded measurement period adjustments for the 2018 acquisitions of $2.3 million related to additional definite-lived intangible assets. (2) The measurement period adjustments for the 2017 acquisitions recorded during 2018 primarily included $2.7 million of additional property, plant, and equipment, $0.3 million of additional definite-lived intangible assets offset by $0.7 million of lower working capital items and other various changes. The measurement period adjustments for the 2017 acquisitions also included a $9.6 million reclassification of goodwill between the aggregate products segment and other non-reportable segments. We re-characterized the results of our Polaris distribution operations, which include shipping and terminal operations, to the aggregate products segment from other non-reportable segments. This change was made to better reflect how the Polaris business is viewed and operated by management and more closely aligns our reporting with how we manage and report our other aggregate products operations. Other Intangible Assets Our purchased intangible assets were as follows (in thousands): As of June 30, 2018 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 103,464 $ (35,030 ) $ 68,434 5.08 Trade names 44,456 (9,655 ) 34,801 19.73 Non-competes 19,101 (10,314 ) 8,787 3.06 Leasehold interests 12,480 (4,220 ) 8,260 6.28 Favorable contracts 4,034 (3,607 ) 427 1.50 Total definite-lived intangible assets 183,535 (62,826 ) 120,709 9.23 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 185,013 $ (62,826 ) $ 122,187 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment. As of December 31, 2017 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 89,933 $ (28,092 ) $ 61,841 5.47 Trade names 44,456 (8,120 ) 36,336 19.87 Non-competes 16,875 (8,510 ) 8,365 2.93 Leasehold interests 12,480 (3,378 ) 9,102 6.66 Favorable contracts 4,034 (3,033 ) 1,001 1.35 Total definite-lived intangible assets 167,778 (51,133 ) 116,645 9.83 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 169,256 $ (51,133 ) $ 118,123 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment. As of June 30, 2018 , the estimated remaining amortization of our definite-lived intangible assets was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 11,802 2019 22,193 2020 19,985 2021 18,376 2022 12,727 Thereafter 35,626 Total $ 120,709 Also included in other non-current liabilities in the accompanying condensed consolidated balance sheets are unfavorable lease intangibles with a gross carrying amount of $1.5 million as of both June 30, 2018 and December 31, 2017 , and a net carrying amount of $0.9 million and $1.0 million as of June 30, 2018 and December 31, 2017 , respectively. These unfavorable lease intangibles have a weighted average remaining life of 4.61 years as of June 30, 2018 . We recorded $6.2 million and $5.1 million of amortization expense on our definite-lived intangible assets and unfavorable lease intangibles for the three months ended June 30, 2018 and 2017 , respectively. We recorded $11.6 million and $10.3 million of amortization expense on our definite-lived intangible assets and unfavorable lease intangibles for the six months ended June 30, 2018 and 2017 , respectively.

DEBT

DEBT	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
DEBT	DEBT Our debt and capital leases were as follows (in thousands): June 30, 2018 December 31, 2017 6.375% senior unsecured notes due 2024 and unamortized premium (1) $ 609,174 $ 609,949 Senior secured credit facility 60,400 9,000 Capital leases 62,632 53,324 Other financing 28,914 31,886 Debt issuance costs (10,566 ) (10,823 ) Total debt 750,554 693,336 Less: current maturities (28,753 ) (25,951 ) Long-term debt, net of current maturities $ 721,801 $ 667,385 (1) The effective interest rates for these notes were 6.56% for both June 30, 2018 and December 31, 2017 . Senior Secured Credit Facility As of June 30, 2018 , we had $17.5 million of undrawn standby letters of credit under our senior secured credit facility ("Revolving Facility"). The weighted average interest rate for the facility was 3.53% as of June 30, 2018 . Our actual maximum credit availability under the Revolving Facility varies from time to time and is determined by calculating the value of our eligible accounts receivable, inventory, mixer trucks and machinery, minus reserves imposed by the lenders and certain other adjustments. Our availability under the Revolving Facility at June 30, 2018 was $173.6 million . We are required, upon the occurrence of certain events, to maintain a fixed charge coverage ratio of at least 1.0 to 1.0 for each period of 12 calendar months. As of June 30, 2018 , we were in compliance with all covenants under the loan agreement that governs the Revolving Facility.

FAIR VALUE DISCLOSURES

FAIR VALUE DISCLOSURES	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE DISCLOSURES	FAIR VALUE DISCLOSURES Fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. Accounting guidance also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability and are developed based on market data obtained from independent sources. Unobservable inputs are inputs that reflect our assumptions about the factors market participants would use in valuing the asset or liability. The guidance establishes three levels of inputs that may be used to measure fair value: Level 1—Quoted prices in active markets for identical assets or liabilities. Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurements. We review the fair value hierarchy classification on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification of levels for certain assets and liabilities within the fair value hierarchy. The following tables present our fair value hierarchy for liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 (in thousands): June 30, 2018 Total Level 1 Level 2 Level 3 Contingent consideration, including current portion (1) $ 59,371 $ — $ — $ 59,371 $ 59,371 $ — $ — $ 59,371 December 31, 2017 Total Level 1 Level 2 Level 3 Contingent consideration, including current portion (1) $ 61,817 $ — $ — $ 61,817 $ 61,817 $ — $ — $ 61,817 (1) The current portion of contingent consideration is included in accrued liabilities in our condensed consolidated balance sheets. The long-term portion of contingent consideration is included in other long-term obligations and deferred credits in our condensed consolidated balance sheets. The following tables present the valuation inputs for the fair value estimates for our three model types of acquisition-related contingent consideration arrangements. We estimate the fair value of acquisition-related contingent consideration arrangements using a Monte Carlo simulation model, an income approach or a discounted cash flow technique, as appropriate. These fair value measurements are based on significant inputs not observable in the market, and thus represent Level 3 inputs. The fair value of the contingent consideration arrangements is sensitive to changes in the forecasts of earnings and/or the relevant operating metrics and changes in discount rates. The fair value of the contingent consideration is reassessed quarterly based on assumptions used in our latest projections and input provided by practice leaders and management. Any change in the fair value estimate is recorded in our consolidated statement of operations for that period. The use of different estimates and assumptions could increase or decrease the estimated fair value of our contingent consideration liability, which would result in different impacts to our consolidated balance sheets and consolidated statements of operations. As of June 30, 2018 Valuation Inputs Monte Carlo Simulation Income Approach Discounted Cash Flow Technique Fair value (in millions) $ 33.4 $ 24.7 $ 1.3 Discount rate 10.50% - 11.50% 3.70% - 5.00% 6.03% - 15.75% Payment cap (in millions) $ 37.3 $ 27.0 $ 1.4 Expected payment period remaining (in years) 2-4 1-5 1-5 Management projections of the payout criteria EBITDA/Volumes Permitted reserves/Volumes Volumes As of December 31, 2017 Valuation Inputs Monte Carlo Simulation Income Approach Discounted Cash Flow Technique Fair value (in millions) $ 37.1 $ 23.6 $ 1.1 Discount rate 9.75% - 11.75% 3.70% - 5.00% 6.03% - 15.75% Payment cap (in millions) $ 39.3 $ 26.0 $ 1.4 Expected payment period remaining (in years) 2-4 1-5 1-5 Management projections of the payout criteria EBITDA/Volumes Permitted reserves/Volumes Volumes The following table provides a reconciliation of the changes in Level 3 fair value measurements from December 31, 2017 to June 30, 2018 (in thousands): Contingent Consideration Balance at December 31, 2017 $ 61,817 Acquisitions (1) 893 Change in contingent consideration valuation (1,258 ) Payments of contingent consideration (2,081 ) Balance at June 30, 2018 $ 59,371 (1) Represents the fair value of the contingent consideration associated with the On Time acquisition as of the acquisition date. Our other financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, and long-term debt. We consider the carrying values of cash and cash equivalents, accounts receivable, and accounts payable to be representative of their respective fair values because of their short-term maturities or expected settlement dates. The fair value of our 6.375% senior unsecured notes due 2024 ("2024 Notes"), which was estimated based on quoted market prices (i.e., Level 2 inputs), was $601.5 million as of June 30, 2018 . The carrying value of the outstanding amounts under our Revolving Facility approximates fair value due to the floating interest rate.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES We recorded income tax expense of $4.3 million and $5.9 million for the three and six months ended June 30, 2018 , respectively. We recorded income tax expense allocated to continuing operations of $6.9 million and $13.6 million for the three and six months ended June 30, 2017 , respectively. For the six months ended June 30, 2018 , our effective tax rate of 32.3% differed from the federal statutory rate primarily due to state taxes and adjustments related to the $1.3 million impact of the tax rate change enacted as part of the Tax Cuts and Jobs Act (the "Tax Act"). For the six months ended June 30, 2017 , our effective tax rate of 73.8% differed from the federal statutory rate primarily due to state taxes and the impact of a $13.9 million non-cash loss on our now expired warrants, which was recorded with no associated tax benefit. We record changes in our unrecognized tax benefits based on anticipated federal and state tax filing positions on a quarterly basis. For the six months ended June 30, 2018 and 2017 , we recorded unrecognized tax benefits of $0.2 million and $5.7 million , respectively. On December 22, 2017, the President signed into law the Tax Act. Shortly after the Tax Act was enacted, the SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”), which provides guidance on accounting for the Tax Act’s impact. This guidance provides a measurement period, which in no case should extend beyond one year from the Tax Act enactment date. As of June 30, 2018, we recorded provisional amounts for the effects of the Tax Act for the Base Erosion Anti-abuse Tax, which is a new minimum tax, and a mechanism to tax global intangible low taxed income. These provisional amounts were immaterial to our consolidated financial statements. We will monitor future guidance set forth by the U.S. Department of Treasury with regard to the new provisions under the Tax Act, and true up provisional amounts as appropriate within the one-year measurement period required under SAB 118.

NET EARNINGS (LOSS) PER SHARE

NET EARNINGS (LOSS) PER SHARE	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
NET EARNINGS (LOSS) PER SHARE	NET EARNINGS (LOSS) PER SHARE Basic earnings (loss) per share is computed by dividing net earnings (loss) attributable to U.S. Concrete by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is computed by dividing net earnings (loss) attributable to U.S. Concrete by the weighted average number of common shares outstanding during the period after giving effect to all potentially dilutive securities outstanding during the period. The following is a reconciliation of the components of the basic and diluted earnings (loss) per share calculations for the three and six months ended June 30, 2018 and 2017 (in thousands): Three Months Ended Six Months Ended 2018 2017 (1) 2018 2017 Numerator for basic and diluted earnings per share: Income (loss) from continuing operations attributable to U.S. Concrete $ 16,265 $ (2,169 ) $ 12,407 $ 4,833 Loss from discontinued operations, net of taxes — (180 ) — (302 ) Net income (loss) attributable to U.S. Concrete $ 16,265 $ (2,349 ) $ 12,407 $ 4,531 Denominator for diluted earnings per share: Basic weighted average common shares outstanding 16,477 15,703 16,450 15,601 Restricted stock and restricted stock units 18 — 56 123 Warrants — — — 791 Stock options 11 — 12 16 Diluted weighted average common shares outstanding 16,506 15,703 16,518 16,531 (1) We reported a loss from continuing operations attributable to U.S. Concrete for the three months ended June 30, 2017; therefore, the share count used in the basic and diluted earnings per share calculation was the same. The following table shows the type and number (in thousands) of potentially dilutive shares excluded from the diluted earnings (loss) per share calculations for the periods presented as their effect would have been anti-dilutive or they had not met their performance target: Three Months Ended Six Months Ended 2018 2017 2018 2017 Potentially dilutive shares: Unvested restricted stock awards and restricted stock units 171 275 141 131 Stock options — 19 — — Warrants — 1,127 — — Total potentially dilutive shares 171 1,421 141 131

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Proceedings From time to time, and currently, we are subject to various claims and litigation brought by employees, customers and other third-parties for, among other matters, personal injuries, property damages, product defects and delay damages that have, or allegedly have, resulted from the conduct of our operations. As a result of these types of claims and litigation, we must periodically evaluate the probability of damages being assessed against us and the range of possible outcomes. In each reporting period, if we determine that the likelihood of damages being assessed against us is probable, and if we believe we can estimate a range of possible outcomes, then we will record a liability. The amount of the liability will be based upon a specific estimate, if we believe a specific estimate to be likely, or it will reflect the low end of our range. Currently, there are no material legal proceedings pending against us. In the future, we may receive funding deficiency demands related to multi-employer pension plans to which we contribute. We are unable to estimate the amount of any potential future funding deficiency demands because the actions of each of the contributing employers in the plans has an effect on each of the contributing employers and the development of a rehabilitation plan by the trustees and subsequent submittal to and approval by the Internal Revenue Service is not predictable. Further, the allocation of fund assets and return assumptions by trustees are variable, as are actual investment returns relative to the plan assumptions. As of June 30, 2018 , there are no material product defect claims pending against us. Accordingly, our existing accruals for claims against us do not reflect any material amounts relating to product defect claims. While our management is not aware of any facts that would reasonably be expected to lead to material product defect claims against us that would have a material adverse effect on our business, financial condition or results of operations, it is possible that claims could be asserted against us in the future. We do not maintain insurance that would cover all damages resulting from product defect claims. In particular, we generally do not maintain insurance coverage for the cost of removing and rebuilding structures. In addition, our indemnification arrangements with contractors or others, when obtained, generally provide only limited protection against product defect claims. Due to inherent uncertainties associated with estimating unasserted claims in our business, we cannot estimate the amount of any future loss that may be attributable to product defect claims related to ready-mixed concrete we have delivered prior to June 30, 2018 . We believe that the resolution of all litigation currently pending or threatened against us or any of our subsidiaries will not materially exceed our existing accruals for those matters. However, because of the inherent uncertainty of litigation, there is a risk that we may have to increase our accruals for one or more claims or proceedings to which we or any of our subsidiaries is a party as more information becomes available or proceedings progress, and any such increase in accruals could have a material adverse effect on our consolidated financial condition or results of operations. We expect in the future that we and our operating subsidiaries will, from time to time, be a party to litigation or administrative proceedings that arise in the normal course of our business. We are subject to federal, state and local environmental laws and regulations concerning, among other matters, air emissions and wastewater discharge. Our management believes we are in substantial compliance with applicable environmental laws and regulations. From time to time, we receive claims from federal and state environmental regulatory agencies and entities asserting that we may be in violation of environmental laws and regulations. Based on experience and the information currently available, our management believes we have adequately accrued for these claims. Despite compliance and experience, it is possible that we could be held liable for future charges, which might be material, but are not currently known to us or cannot be estimated by us. In addition, changes in federal or state laws, regulations or requirements, or discovery of currently unknown conditions, could require additional expenditures. As permitted under Delaware law, we have agreements that provide indemnification of officers and directors for certain events or occurrences while the officer or director is or was serving at our request in such capacity. The maximum potential amount of future payments that we could be required to make under these indemnification agreements is not limited; however, we have a director and officer insurance policy that potentially limits our exposure and enables us to recover a portion of future amounts that may be paid. As a result of the insurance policy coverage, we believe the estimated fair value of these indemnification agreements is minimal. Accordingly, we have not recorded any liabilities for these agreements as of June 30, 2018 . We and our subsidiaries are parties to agreements that require us to provide indemnification in certain instances when we acquire businesses and real estate and in the ordinary course of business with our customers, suppliers, lessors and service providers. San Francisco County Matter On April 5, 2018, the State of California filed a lawsuit against the Company in San Francisco County Superior Court alleging violations of California environmental statutes, unfair business practices, and false advertising arising out of alleged incidents of employees spraying down mixer trucks on public streets allegedly resulting in concrete residue and waste water entering sewer and storm drain systems. The State of California seeks injunctive relief, civil penalties, restitution, and costs of investigation and litigation, including damages of between $2,500 and $25,000 per alleged violation. The Company is vigorously defending against these allegations and while the ultimate liability with respect to these claims cannot be determined at this time, the Company does not expect these matters to result in fines of more than $300,000 . The Company does not expect this matter to have a material impact on its financial position, results of operations or liquidity. Royalty Assessment In 2014, Eagle Rock Materials Ltd. (“ERM”), a Polaris subsidiary, was notified by the British Columbia Ministry of Forests, Lands and Natural Resource Operations that royalties were due for 2012 and 2013, based on the tenure date, in respect of Polaris’s quarrying lease for the Eagle Rock Quarry project. In 2016, ERM was notified that further royalties were due for 2014, 2015 and 2016 (up to October) based on the tenure date, and in 2017, ERM was notified of interest charges of $0.4 million . The total royalties and interest claimed to date are approximately $2.2 million , which the Company, through its Polaris subsidiary, is disputing. Polaris’s position is that royalties are only payable based on actual production, in accordance with a written undertaking from the responsible government agency prior to commencement of the lease, and as the project has not been developed, no royalties are currently due. Accordingly, the Company has currently not recorded a provision for the royalty assessment. Insurance Programs We maintain third-party insurance coverage against certain workers' compensation, automobile and general liability risks in amounts we believe are reasonable. Under certain components of our insurance program, we share the risk of loss with our insurance underwriters by maintaining high deductibles. We fund these deductibles and record an expense for expected losses under the programs. We determine the expected losses using a combination of our historical loss experience and subjective assessments of our future loss exposure. The estimated losses are subject to uncertainty, including changes in claims reporting patterns, claims settlement patterns, judicial decisions, legislation and economic conditions. Although we believe the estimated losses we have recorded are reasonable, significant differences related to the items we have noted above could materially affect our insurance obligations and future expense. The amount recorded in accrued liabilities and other long-term obligations in our condensed consolidated balance sheets for estimated losses was $20.2 million as of June 30, 2018 and $19.2 million as of December 31, 2017 . Performance Bonds In the normal course of business, we are contingently liable for performance under $35.0 million in performance bonds that various contractors, states and municipalities have required as of June 30, 2018 . The bonds principally relate to construction contracts, reclamation obligations, licensing and permitting. We and our subsidiaries have indemnified the underwriting insurance company against any exposure under the performance bonds. No material claims have been made against these bonds as of June 30, 2018 . Employment Agreements We have employment agreements with executive officers and certain key members of management under which severance payments would become payable in the event of specified terminations without cause or after a change of control.

SEGMENT INFORMATION

SEGMENT INFORMATION	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Our two reportable segments consist of ready-mixed concrete and aggregate products as described below. Our ready-mixed concrete segment produces and sells ready-mixed concrete. This segment serves the following markets: Texas, Northern California, New York, New Jersey, Pennsylvania, Washington, D.C., Oklahoma and the U.S. Virgin Islands. Our aggregate products segment includes crushed stone, sand and gravel products and serves the markets in which our ready-mixed concrete segment operates as well as the West Coast and Hawaii. Other products not associated with a reportable segment include our aggregates distribution operations, building materials stores, hauling operations, lime slurry, ARIDUS ® Rapid Drying Concrete technology, brokered product sales, recycled aggregates operation and an industrial waterfront marine terminal and sales yard. The financial results of our acquisitions have been included in their respective reportable segment or in other products, as applicable, as of their respective acquisition dates. Our customers are generally involved in the construction industry, which is a cyclical business and is subject to general and more localized economic conditions. In addition, our business is impacted by seasonal variations in weather conditions, which vary by regional market. Accordingly, demand for our products and services during the winter months is typically lower than in other months of the year because of inclement weather. Also, sustained periods of inclement weather and other adverse weather conditions could cause the delay of construction projects during other times of the year. Our chief operating decision maker evaluates segment performance and allocates resources based on Adjusted EBITDA. We define Adjusted EBITDA as income (loss) from continuing operations excluding the impact of income tax expense (benefit), depreciation, depletion and amortization, net interest expense, loss on extinguishment of debt, derivative income (loss), the non-cash change in value of contingent consideration, impairment of assets, hurricane-related losses, quarry dredge costs for a specific event, purchase accounting adjustments for inventory and foreign currency losses resulting from the Polaris acquisition. Other impacts excluded from our Adjusted EBITDA are non-cash stock compensation expense, acquisition-related costs and officer transition expenses. Many of the impacts excluded to derive Adjusted EBITDA are similar to those excluded in calculating our compliance with our debt covenants. We consider Adjusted EBITDA to be an indicator of the operational strength and performance of our business. We have included Adjusted EBITDA because it is a key financial measure used by our management to (1) internally measure our operating performance and (2) assess our ability to service our debt, incur additional debt, and meet our capital expenditure requirements. Adjusted EBITDA should not be construed as an alternative to, or a better indicator of, operating income or loss, is not based on U.S. GAAP, and is not a measure of our cash flows or ability to fund our cash needs. Our measurements of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies, and may not be comparable to similarly titled measures used in the agreements governing our debt. We generally account for inter-segment sales at market prices. Corporate includes executive, administrative, financial, legal, human resources, business development and risk management activities that are not allocated to reportable segments and are excluded from segment Adjusted EBITDA. Eliminations include transactions to account for intercompany activity. During the quarter ended June 30, 2018, we re-characterized the results of our Polaris distribution operations, which include shipping and terminal operations, to the aggregate products segment from other products and eliminations. This change was made to better reflect how the Polaris business is viewed and operated by management and more closely aligns our reporting with how we manage and report our other aggregate products operations. As a result of this change, certain first quarter of 2018 amounts have been reclassified from those previously reported. The following tables set forth certain financial information relating to our continuing operations by reportable segment (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue: Ready-mixed concrete Sales to external customers $ 350,027 $ 310,122 $ 639,267 $ 585,578 Aggregate products Sales to external customers 35,065 12,036 59,791 21,333 Intersegment sales 13,449 10,730 22,884 19,257 Total aggregate products 48,514 22,766 82,675 40,590 Total reportable segment revenue 398,541 332,888 721,942 626,168 Other products and eliminations 5,659 8,038 10,045 13,891 Total revenue $ 404,200 $ 340,926 $ 731,987 $ 640,059 Reportable Segment Adjusted EBITDA: Ready-mixed concrete $ 51,795 $ 49,646 $ 92,762 $ 91,150 Aggregate products 12,237 8,674 16,913 12,671 Total reportable segment Adjusted EBITDA $ 64,032 $ 58,320 $ 109,675 $ 103,821 Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations: Total reportable segment Adjusted EBITDA $ 64,032 $ 58,320 $ 109,675 $ 103,821 Other products and eliminations from operations 3,333 3,166 4,478 6,023 Corporate overhead (14,622 ) (14,714 ) (30,092 ) (25,706 ) Depreciation, depletion and amortization for reportable segments (20,877 ) (15,292 ) (40,036 ) (30,145 ) Acquisition-related costs — — (1,017 ) — Impairment of assets (1,299 ) — (1,299 ) — Hurricane-related losses for reportable segments 492 — 185 — Quarry dredge costs for specific event for reportable segment (365 ) — (556 ) — Purchase accounting adjustments for inventory — — (706 ) — Interest expense, net (11,514 ) (10,368 ) (22,823 ) (20,510 ) Corporate derivative loss — (15,766 ) — (13,910 ) Change in value of contingent consideration for reportable segments 1,626 (720 ) 1,258 (1,328 ) Corporate, other products and eliminations other income, net (236 ) 116 (661 ) 201 Income from continuing operations before income taxes 20,570 4,742 18,406 18,446 Income tax expense (4,292 ) (6,911 ) (5,944 ) (13,613 ) Income (loss) from continuing operations $ 16,278 $ (2,169 ) $ 12,462 $ 4,833 Three Months Ended Six Months Ended 2018 2017 2018 2017 Capital Expenditures: Ready-mixed concrete $ 6,948 $ 6,216 $ 13,466 $ 12,323 Aggregate products 5,258 1,409 6,086 5,677 Other products and corporate 256 349 1,285 692 Total capital expenditures $ 12,462 $ 7,974 $ 20,837 $ 18,692 Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue by Product: Ready-mixed concrete $ 350,027 $ 310,122 $ 639,267 $ 585,578 Aggregate products 35,065 12,036 59,791 21,333 Aggregates distribution 6,249 7,500 10,370 12,953 Building materials 7,269 6,674 13,130 10,744 Lime 3,219 2,445 5,511 5,140 Hauling 1,593 1,260 2,705 2,601 Other 778 889 1,213 1,710 Total revenue $ 404,200 $ 340,926 $ 731,987 $ 640,059 As of June 30, 2018 As of December 31, 2017 Identifiable Property, Plant and Equipment Assets: Ready-mixed concrete $ 292,897 $ 266,584 Aggregate products 352,145 342,090 (1) Other products and corporate 29,150 27,594 (1) Total identifiable assets $ 674,192 $ 636,268 (1) $27.5 million has been reclassified to aggregate products from other products and corporate due to the segment reporting change made during the three months ended June 30, 2018.

SUPPLEMENTAL CONDENSED CONSOLID

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION	6 Months Ended
	Jun. 30, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION	SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION Our 2024 Notes are fully and unconditionally and jointly and severally guaranteed on a senior unsecured basis by each direct and indirect domestic subsidiary of the Company, each a guarantor subsidiary. Each guarantor subsidiary is directly or indirectly 100% owned by the Company. Neither the net book value nor the purchase price of any of our recently acquired guarantor subsidiaries were 20% or more of the aggregate principal amount of our 2024 Notes. The 2024 Notes are not guaranteed by any direct or indirect foreign subsidiaries of the Company, each a non-guarantor subsidiary. Consequently, we are required to provide condensed consolidating financial information in accordance with Rule 3-10 of Regulation S-X. The following condensed consolidating financial statements present, in separate columns, financial information for (1) the Parent on a parent only basis, (2) the guarantor subsidiaries on a combined basis, (3) the non-guarantor subsidiaries on a combined basis, (4) the eliminations and reclassifications necessary to arrive at the information for the Company on a consolidated basis, and (5) the Company on a consolidated basis. The following condensed consolidating financial statements of U.S. Concrete, Inc. and its subsidiaries present investments in consolidated subsidiaries using the equity method of accounting. The principal elimination entries eliminate investments in subsidiaries and intercompany balances and transactions. CONDENSED CONSOLIDATING BALANCE SHEET JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated ASSETS Current assets: Cash and cash equivalents $ — $ 12,713 $ 8,798 $ — $ 21,511 Trade accounts receivable, net — 239,109 8,525 — 247,634 Inventories — 41,496 7,288 — 48,784 Prepaid expenses — 7,974 307 — 8,281 Other receivables 5,776 6,366 55 — 12,197 Other current assets — 4,437 2,845 — 7,282 Intercompany receivables 14,394 — — (14,394 ) — Total current assets 20,170 312,095 27,818 (14,394 ) 345,689 Property, plant and equipment, net — 457,426 216,766 — 674,192 Goodwill — 156,637 60,679 — 217,316 Intangible assets, net — 119,945 2,242 — 122,187 Deferred income taxes — — 677 (677 ) — Investment in subsidiaries 571,615 — — (571,615 ) — Long-term intercompany receivables 369,555 — — (369,555 ) — Other assets — 6,243 948 — 7,191 Total assets $ 961,340 $ 1,052,346 $ 309,130 $ (956,241 ) $ 1,366,575 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 652 $ 127,887 $ 1,740 $ — $ 130,279 Accrued liabilities 4,589 73,719 7,620 — 85,928 Current maturities of long-term debt — 28,169 584 — 28,753 Intercompany payables — — 14,394 (14,394 ) — Total current liabilities 5,241 229,775 24,338 (14,394 ) 244,960 Long-term debt, net of current maturities 659,008 62,303 490 — 721,801 Other long-term obligations and deferred credits 875 74,763 2,885 — 78,523 Deferred income taxes — 4,170 — (677 ) 3,493 Long-term intercompany payables — 249,217 120,338 (369,555 ) — Total liabilities 665,124 620,228 148,051 (384,626 ) 1,048,777 Total shareholders' equity 296,216 432,118 139,497 (571,615 ) 296,216 Non-controlling interest — — 21,582 — 21,582 Total equity 296,216 432,118 161,079 (571,615 ) 317,798 Total liabilities and equity $ 961,340 $ 1,052,346 $ 309,130 $ (956,241 ) $ 1,366,575 CONDENSED CONSOLIDATING BALANCE SHEET DECEMBER 31, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated ASSETS Current assets: Cash and cash equivalents $ — $ 6,970 $ 15,611 $ — $ 22,581 Trade accounts receivable, net — 208,669 5,552 — 214,221 Inventories — 41,006 7,079 — 48,085 Prepaid expenses — 4,723 574 — 5,297 Other receivables 16,256 2,644 291 — 19,191 Other current assets — 2,307 3 — 2,310 Intercompany receivables 14,628 — — (14,628 ) — Total current assets 30,884 266,319 29,110 (14,628 ) 311,685 Property, plant and equipment, net — 416,888 219,380 — 636,268 Goodwill — 142,221 62,510 — 204,731 Intangible assets, net — 115,570 2,553 — 118,123 Deferred income taxes — — 674 (674 ) — Investment in subsidiaries 544,256 — — (544,256 ) — Long-term intercompany receivables 322,193 — — (322,193 ) — Other assets — 4,384 943 — 5,327 Total assets $ 897,333 $ 945,382 $ 315,170 $ (881,751 ) $ 1,276,134 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 17 $ 115,465 $ 1,588 $ — $ 117,070 Accrued liabilities 6,703 53,097 5,620 — 65,420 Current maturities of long-term debt — 25,284 667 — 25,951 Intercompany payables — — 14,628 (14,628 ) — Total current liabilities 6,720 193,846 22,503 (14,628 ) 208,441 Long-term debt, net of current maturities 608,127 58,545 713 — 667,385 Other long-term obligations and deferred credits 2,035 88,743 2,563 — 93,341 Deferred income taxes — 5,499 — (674 ) 4,825 Long-term intercompany payables — 195,282 126,911 (322,193 ) — Total liabilities 616,882 541,915 152,690 (337,495 ) 973,992 Total shareholders' equity 280,451 403,467 140,789 (544,256 ) 280,451 Non-controlling interest — — 21,691 — 21,691 Total equity 280,451 403,467 162,480 (544,256 ) 302,142 Total liabilities and equity $ 897,333 $ 945,382 $ 315,170 $ (881,751 ) $ 1,276,134 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS THREE MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 375,316 $ 28,884 $ — $ 404,200 Cost of goods sold before depreciation, depletion and amortization — 298,667 21,571 — 320,238 Selling, general and administrative expenses — 30,494 1,381 — 31,875 Depreciation, depletion and amortization — 18,491 3,651 — 22,142 Change in value of contingent consideration 46 (1,672 ) — — (1,626 ) Impairment of assets — 1,299 — — 1,299 Loss (gain) on sale of assets, net — (385 ) 14 — (371 ) Operating income (loss) (46 ) 28,422 2,267 — 30,643 Interest expense, net 10,058 910 546 — 11,514 Other expense (income), net 811 (1,531 ) (721 ) — (1,441 ) Income (loss) before income taxes, equity in earnings of subsidiaries and non-controlling interest (10,915 ) 29,043 2,442 — 20,570 Income tax expense (benefit) (3,093 ) 7,335 50 — 4,292 Net income (loss) before equity in earnings of subsidiaries and non-controlling interest (7,822 ) 21,708 2,392 — 16,278 Equity in earnings of subsidiaries 24,087 — — (24,087 ) — Net income (loss) 16,265 21,708 2,392 (24,087 ) 16,278 Less: Net income attributable to non-controlling interest — — (13 ) — (13 ) Net income (loss) attributable to U.S. Concrete $ 16,265 $ 21,708 $ 2,379 $ (24,087 ) $ 16,265 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS THREE MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 335,468 $ 5,458 $ — $ 340,926 Cost of goods sold before depreciation, depletion and amortization — 259,733 3,841 — 263,574 Selling, general and administrative expenses — 29,457 743 — 30,200 Depreciation, depletion and amortization — 15,561 789 — 16,350 Change in value of contingent consideration 139 581 — — 720 Gain on sale of assets, net — (198 ) — — (198 ) Operating income (loss) (139 ) 30,334 85 — 30,280 Interest expense, net 9,989 379 — — 10,368 Derivative loss 15,766 — — — 15,766 Other expense (income), net — (622 ) 26 — (596 ) Income (loss) from continuing operations, before income taxes and equity in earnings of subsidiaries (25,894 ) 30,577 59 — 4,742 Income tax expense (benefit) (3,702 ) 10,610 3 — 6,911 Net income (loss) from continuing operations before equity in earnings of subsidiaries (22,192 ) 19,967 56 — (2,169 ) Loss from discontinued operations, net of taxes and before equity in earnings of subsidiaries — (180 ) — — (180 ) Net income (loss) before equity in earnings of subsidiaries (22,192 ) 19,787 56 — (2,349 ) Equity in earnings of subsidiaries 19,843 — — (19,843 ) — Net income (loss) $ (2,349 ) $ 19,787 $ 56 $ (19,843 ) $ (2,349 ) CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS SIX MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 684,145 $ 47,842 $ — $ 731,987 Cost of goods sold before depreciation, depletion and amortization — 549,283 38,187 — 587,470 Selling, general and administrative expenses — 60,096 4,055 — 64,151 Depreciation, depletion and amortization — 35,776 6,941 — 42,717 Change in value of contingent consideration 89 (1,347 ) — — (1,258 ) Impairment of assets — 1,299 — — 1,299 Loss (gain) on sale of assets, net — (575 ) 14 — (561 ) Operating income (loss) (89 ) 39,613 (1,355 ) — 38,169 Interest expense, net 19,827 1,801 1,195 — 22,823 Other expense (income), net 811 (2,535 ) (1,336 ) — (3,060 ) Income (loss) before income taxes, equity in earnings of subsidiaries and non-controlling interest (20,727 ) 40,347 (1,214 ) — 18,406 Income tax expense (benefit) (5,776 ) 11,699 21 — 5,944 Net income (loss) before equity in earnings of subsidiaries and non-controlling interest (14,951 ) 28,648 (1,235 ) — 12,462 Equity in earnings of subsidiaries 27,358 — — (27,358 ) — Net income (loss) 12,407 28,648 (1,235 ) (27,358 ) 12,462 Less: Net income attributable to non-controlling interest — — (55 ) — (55 ) Net income (loss) attributable to U.S. Concrete $ 12,407 $ 28,648 $ (1,290 ) $ (27,358 ) $ 12,407 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS SIX MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 629,491 $ 10,568 $ — $ 640,059 Cost of goods sold before depreciation, depletion and amortization — 491,024 8,309 — 499,333 Selling, general and administrative expenses — 54,655 1,362 — 56,017 Depreciation, depletion and amortization — 30,929 1,280 — 32,209 Change in value of contingent consideration 280 1,048 — — 1,328 Loss (gain) on sale of assets, net — (392 ) 2 — (390 ) Operating income (loss) (280 ) 52,227 (385 ) — 51,562 Interest expense, net 19,688 822 — — 20,510 Derivative loss 13,910 — — — 13,910 Other expense (income), net — (1,373 ) 69 — (1,304 ) Income (loss) from continuing operations, before income taxes and equity in earnings of subsidiaries (33,878 ) 52,778 (454 ) — 18,446 Income tax expense (benefit) (7,467 ) 21,097 (17 ) — 13,613 Net income (loss) from continuing operations before equity in earnings of subsidiaries (26,411 ) 31,681 (437 ) — 4,833 Loss from discontinued operations, net of taxes and before equity in earnings of subsidiaries — (302 ) — — (302 ) Net income (loss) before equity in earnings of subsidiaries (26,411 ) 31,379 (437 ) — 4,531 Equity in earnings of subsidiaries 30,942 — — (30,942 ) — Net income (loss) $ 4,531 $ 31,379 $ (437 ) $ (30,942 ) $ 4,531 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS SIX MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations U.S. Concrete Consolidated Net cash provided by (used in) operating activities $ (21,669 ) $ 61,128 $ 1,461 $ 6,940 $ 47,860 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (19,432 ) (1,405 ) — (20,837 ) Payments for acquisitions, net of cash acquired — (61,111 ) — — (61,111 ) Proceeds from sale of property, plant and equipment — 997 88 — 1,085 Proceeds from disposals of businesses — 158 — — 158 Insurance proceeds from property loss claims — 1,634 500 — 2,134 Net cash used in investing activities — (77,754 ) (817 ) — (78,571 ) CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from revolver borrowings 228,613 — — — 228,613 Repayments of revolver borrowings (177,213 ) — — — (177,213 ) Proceeds from exercise of stock options 78 — — — 78 Payments of other long-term obligations (2,215 ) (1,325 ) — — (3,540 ) Payments for other financing — (13,404 ) (305 ) — (13,709 ) Other treasury share purchases (1,869 ) — — — (1,869 ) Cash paid to non-controlling interest — — (249 ) — (249 ) Other proceeds — 464 — — 464 Intercompany funding (25,725 ) 39,470 (6,805 ) (6,940 ) — Net cash provided by (used in) financing activities 21,669 25,205 (7,359 ) (6,940 ) 32,575 EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS — — (98 ) — (98 ) NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — 8,579 (6,813 ) — 1,766 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD — 6,970 15,611 — 22,581 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD $ — $ 15,549 $ 8,798 $ — $ 24,347 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS SIX MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations U.S. Concrete Consolidated Net cash provided by (used in) operating activities $ 20,700 $ 61,704 $ 2,072 $ (31,321 ) $ 53,155 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (16,612 ) (2,080 ) — (18,692 ) Payments for acquisitions, net of cash acquired 469 (33,305 ) — — (32,836 ) Proceeds from sale of property, plant and equipment — 841 — — 841 Proceeds from disposals of businesses — 873 — — 873 Investment in subsidiaries (646 ) — — 646 — Net cash provided by (used in) investing activities (177 ) (48,203 ) (2,080 ) 646 (49,814 ) CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from issuance of debt 211,500 — — — 211,500 Proceeds from exercise of stock options and warrants 494 — — — 494 Payments of other long-term obligations (2,925 ) (1,611 ) — — (4,536 ) Payments for other financing — (8,778 ) — — (8,778 ) Debt issuance costs (3,231 ) — — — (3,231 ) Other treasury share purchases (2,825 ) — — — (2,825 ) Intercompany funding (223,536 ) 191,666 1,195 30,675 — Net cash provided by (used in) financing activities (20,523 ) 181,277 1,195 30,675 192,624 NET INCREASE IN CASH AND CASH EQUIVALENTS — 194,778 1,187 — 195,965 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD — 75,576 198 — 75,774 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ — $ 270,354 $ 1,385 $ — $ 271,739

RESTRICTED CASH

RESTRICTED CASH	6 Months Ended
	Jun. 30, 2018
Restricted Cash [Abstract]
RESTRICTED CASH	RESTRICTED CASH The following table provides a reconciliation of cash and cash equivalents and restricted cash (in thousands) as reported within our condensed consolidated balance sheets to the same items as reported in our condensed consolidated statement of cash flows: June 30, 2018 December 31, 2017 Cash and cash equivalents $ 21,511 $ 22,581 Restricted cash included in other current assets 2,836 — Total cash and cash equivalents and restricted cash $ 24,347 $ 22,581 Restricted cash as of June 30, 2018 related to amounts held in escrow pending the purchase of certain emission credits to expand our sales capacity in California of aggregate products delivered by ship from our Canadian operations. The purchase of these emission credits was finalized on July 20, 2018.

ASSETS AND LIABILITIES HELD FOR

ASSETS AND LIABILITIES HELD FOR SALE	6 Months Ended
	Jun. 30, 2018
Property, Plant and Equipment [Abstract]
ASSETS AND LIABILITIES HELD FOR SALE	ASSETS AND LIABILITIES HELD FOR SALE As of June 30, 2018 , the Company had completed negotiations with buyers for properties in New Jersey and Michigan, both within our aggregate products segment, that were near the end of their economic lives and no longer fit into the operating plans of the Company. Upon finalizing negotiations, we recorded a $1.3 million impairment to write the assets down to their fair value. As of June 30, 2018, other current assets included $3.1 million of property, plant and equipment held for sale and accrued liabilities included $1.2 million of liabilities that will be assumed by the buyers. We closed the sale of the Michigan property on July 2, 2018 and expect to close the sale of the New Jersey property in the third quarter of 2018.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements include the accounts of U.S. Concrete, Inc. and its subsidiaries (collectively, "we," "us," "our," the "Company," or "U.S. Concrete") and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC") for reporting interim financial information. Some information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP") have been condensed or omitted pursuant to the SEC’s rules and regulations. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2017 (the " 2017 Form 10-K"). In the opinion of our management, all material adjustments necessary to state fairly the information in our unaudited condensed consolidated financial statements have been included. All adjustments are of a normal or recurring nature. All amounts are presented in United States dollars, unless otherwise noted. Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year.
Use of Estimates	The preparation of financial statements and accompanying notes in conformity with U.S. GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Estimates and assumptions that we consider significant in the preparation of our financial statements include those related to our allowance for doubtful accounts, business combinations, goodwill, intangible assets, valuation of contingent consideration, accruals for self-insurance programs, income taxes, the valuation of inventory and the valuation and useful lives of property, plant and equipment.
Recent Accounting Pronouncements	Standards/Updates Adopted This Year Revenue Recognition. In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance that outlines a single comprehensive model for accounting for revenue arising from contracts with customers, which supersedes most of the existing revenue recognition guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services and also requires certain additional disclosures. We adopted this guidance and related amendments as of January 1, 2018, applying the modified retrospective transition approach to all contracts. Adoption of the new guidance did not result in changes in the amount of revenue recognized or the timing of when such revenue is recognized. Clarification of the Definition of a Business in Business Combinations. In January 2017, the FASB issued an update under business combinations in an effort to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or as business combinations. The amendments in this update provide a screen to determine when a set of assets is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. The adoption of this standard did not have a material impact on our financial condition and results of operations. Classification of Certain Cash Receipts and Cash Payments. In August 2016, the FASB issued guidance to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. Adoption of this standard did not result in any material changes to our statements of cash flows. Restricted Cash in the Statement of Cash Flows. In November 2016, the FASB issued guidance to reduce diversity in the presentation of restricted cash in the statement of cash flows. The standard has certain disclosure requirements related to restricted cash and requires that restricted cash be included with cash balances in the statement of cash flows. Adoption of this standard did not have a material impact on our statement of cash flows. Standards/Updates Not Yet Adopted Lease Accounting. In February 2016, the FASB issued a new lease accounting standard intended to increase transparency and comparability among organizations by reorganizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, lessees will be required to recognize a right-of-use asset and a lease liability, measured on a discounted basis, at the commencement date for all leases with terms greater than twelve months. Additionally, this guidance will require disclosures to help investors and other financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases, including qualitative and quantitative requirements. We expect to adopt the guidance using the recently approved transition approach that permits application of the new standard at the adoption date instead of the earliest comparative period presented in the financial statements, with a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. We have established a cross-functional coordinated team to implement the standard. The implementation process includes reviewing all leases, performing a completeness assessment over the lease population, analyzing the practical expedients and identifying a new lease accounting technology system. We will also evaluate our processes and internal controls to meet the new accounting, reporting and disclosure requirements. This guidance will be effective for us beginning with the first quarter of 2019. Although we have not yet completed our evaluation of the impact on our financial statements, we expect that our adoption of the standard will have a significant impact on our consolidated balance sheet.

BUSINESS COMBINATIONS (Tables)

BUSINESS COMBINATIONS (Tables)	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
Schedule of Total Consideration and Amounts Related to the Assets Acquired and Liabilities Assumed	The following table presents the total consideration for the 2018 acquisitions and the preliminary amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the respective acquisition dates (in thousands): 2018 Acquisitions Inventory $ 674 Other current assets 77 Property, plant and equipment 30,235 Definite-lived intangible assets 15,450 Total assets acquired 46,436 Total liabilities assumed 153 Goodwill 14,556 Total consideration (fair value) (1) $ 60,839 (1) Included $0.9 million of contingent consideration. The following table presents the total consideration for the 2017 acquisitions and the preliminary amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the respective acquisition dates (in thousands): Polaris 2017 Acquisitions (Excluding Polaris) Cash $ 20,678 $ — Accounts receivable (1) 4,561 1,110 Inventory 6,022 695 Other current assets 1,522 48 Property, plant and equipment 199,316 63,221 Other long-term assets 896 — Definite-lived intangible assets — 8,331 Total assets acquired 232,995 73,405 Current liabilities (2) 26,465 1,081 Other long-term liabilities 2,999 62 Total liabilities assumed 29,464 1,143 Non-controlling interest 21,442 — Goodwill 60,679 12,837 Total consideration (fair value) (3) $ 242,768 $ 85,099 (1) Except for Polaris, the aggregate fair value of the 2017 acquisitions' acquired accounts receivable approximated the aggregate gross contractual amount. The fair value of Polaris's acquired accounts receivable was $4.6 million , which represented an aggregate gross contractual amount of $4.9 million , less estimated amounts not expected to be collected. (2) Current liabilities for Polaris included $14.2 million payable to the Company, which was eliminated in consolidation. (3) Included $29.5 million of deferred and contingent consideration for acquisitions other than Polaris.
Schedule of Major Classes of Intangible Assets Acquired	A summary of the intangible assets acquired in 2018 and 2017 and their estimated useful lives is as follows (in thousands): Weighted Average Amortization Period (In Years) Fair Value At Acquisition Date Customer relationships 6.86 $ 21,171 Non-compete agreements 5.00 2,226 Favorable contract 3.67 384 Total $ 23,781 Our purchased intangible assets were as follows (in thousands): As of June 30, 2018 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 103,464 $ (35,030 ) $ 68,434 5.08 Trade names 44,456 (9,655 ) 34,801 19.73 Non-competes 19,101 (10,314 ) 8,787 3.06 Leasehold interests 12,480 (4,220 ) 8,260 6.28 Favorable contracts 4,034 (3,607 ) 427 1.50 Total definite-lived intangible assets 183,535 (62,826 ) 120,709 9.23 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 185,013 $ (62,826 ) $ 122,187 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment. As of December 31, 2017 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 89,933 $ (28,092 ) $ 61,841 5.47 Trade names 44,456 (8,120 ) 36,336 19.87 Non-competes 16,875 (8,510 ) 8,365 2.93 Leasehold interests 12,480 (3,378 ) 9,102 6.66 Favorable contracts 4,034 (3,033 ) 1,001 1.35 Total definite-lived intangible assets 167,778 (51,133 ) 116,645 9.83 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 169,256 $ (51,133 ) $ 118,123 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment.
Schedule of Estimated Future Aggregate Amortization Expense of Definite-Lived Intangible Assets	As of June 30, 2018 , the estimated future aggregate amortization expense of definite-lived intangible assets from the 2018 and 2017 acquisitions was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 1,946 2019 3,892 2020 3,875 2021 3,690 2022 3,735 Thereafter 4,965 Total $ 22,103 As of June 30, 2018 , the estimated remaining amortization of our definite-lived intangible assets was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 11,802 2019 22,193 2020 19,985 2021 18,376 2022 12,727 Thereafter 35,626 Total $ 120,709
Schedule of Unaudited Pro Forma Information	All other acquisitions have been included and represent our estimate of the results of operations as if the 2018 acquisitions had been completed on January 1, 2017 and the 2017 acquisitions had been completed on January 1, 2016 (in thousands, except per share information): Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue from continuing operations $ 404,200 $ 378,692 $ 746,725 $ 720,709 Net income (loss) attributable to U.S. Concrete $ 16,440 $ (2,117 ) $ 13,794 $ 5,232 Net income (loss) per share attributable to U.S. Concrete - basic $ 1.00 $ (0.13 ) $ 0.84 $ 0.34 Net income (loss) per share attributable to U.S. Concrete - diluted $ 1.00 $ (0.13 ) $ 0.84 $ 0.32
Schedule of Adjustments Reflected in Pro Forma Net Income (Loss) and Net Income (Loss) Per Share Amounts	The unaudited pro forma net income attributable to U.S. Concrete and per share amounts above reflect the following adjustments (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Increase in intangible amortization expense $ — $ (902 ) $ (523 ) $ (1,804 ) Increase in depreciation expense — (3,325 ) — (4,500 ) Exclusion of buyer transaction costs 159 413 851 644 Exclusion of seller transaction costs — — — 3,224 Increase in expenses related to conversions from IFRS (1) to U.S. GAAP — (44 ) — (113 ) Decrease (increase) in income tax expense 16 (923 ) (474 ) (1,416 ) Increase in non-controlling loss — (143 ) — (280 ) (1) IFRS is defined as International Financial Reporting Standards as issued by the International Accounting Standards Board.

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories were as follows (in thousands): June 30, 2018 December 31, 2017 Raw materials $ 44,288 $ 44,238 Building materials for resale 2,998 2,192 Other 1,498 1,655 Total inventories $ 48,784 $ 48,085

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Goodwill by Reportable Segment	The changes in goodwill by reportable segment from December 31, 2017 to June 30, 2018 were as follows (in thousands): Ready-Mixed Concrete Segment Aggregate Products Segment Other Non-Reportable Segments Total Goodwill, gross at December 31, 2017 $ 139,834 $ 57,438 $ 13,212 $ 210,484 2018 acquisitions (1) 13,697 — 859 14,556 Measurement period adjustments for prior year business combinations (2) (340 ) 6,911 (8,542 ) (1,971 ) Goodwill, gross at June 30, 2018 153,191 64,349 5,529 223,069 Accumulated impairment at December 31, 2017 and June 30, 2018 (4,414 ) (1,339 ) — (5,753 ) Goodwill, net at June 30, 2018 $ 148,777 $ 63,010 $ 5,529 $ 217,316 (1) During the three months ended June 30, 2018 , we recorded measurement period adjustments for the 2018 acquisitions of $2.3 million related to additional definite-lived intangible assets. (2) The measurement period adjustments for the 2017 acquisitions recorded during 2018 primarily included $2.7 million of additional property, plant, and equipment, $0.3 million of additional definite-lived intangible assets offset by $0.7 million of lower working capital items and other various changes. The measurement period adjustments for the 2017 acquisitions also included a $9.6 million reclassification of goodwill between the aggregate products segment and other non-reportable segments. We re-characterized the results of our Polaris distribution operations, which include shipping and terminal operations, to the aggregate products segment from other non-reportable segments. This change was made to better reflect how the Polaris business is viewed and operated by management and more closely aligns our reporting with how we manage and report our other aggregate products operations.
Schedule of Purchased Finite-Lived Intangible Assets	A summary of the intangible assets acquired in 2018 and 2017 and their estimated useful lives is as follows (in thousands): Weighted Average Amortization Period (In Years) Fair Value At Acquisition Date Customer relationships 6.86 $ 21,171 Non-compete agreements 5.00 2,226 Favorable contract 3.67 384 Total $ 23,781 Our purchased intangible assets were as follows (in thousands): As of June 30, 2018 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 103,464 $ (35,030 ) $ 68,434 5.08 Trade names 44,456 (9,655 ) 34,801 19.73 Non-competes 19,101 (10,314 ) 8,787 3.06 Leasehold interests 12,480 (4,220 ) 8,260 6.28 Favorable contracts 4,034 (3,607 ) 427 1.50 Total definite-lived intangible assets 183,535 (62,826 ) 120,709 9.23 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 185,013 $ (62,826 ) $ 122,187 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment. As of December 31, 2017 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 89,933 $ (28,092 ) $ 61,841 5.47 Trade names 44,456 (8,120 ) 36,336 19.87 Non-competes 16,875 (8,510 ) 8,365 2.93 Leasehold interests 12,480 (3,378 ) 9,102 6.66 Favorable contracts 4,034 (3,033 ) 1,001 1.35 Total definite-lived intangible assets 167,778 (51,133 ) 116,645 9.83 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 169,256 $ (51,133 ) $ 118,123 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment.
Schedule of Purchased Indefinite-Lived Intangible Assets	Our purchased intangible assets were as follows (in thousands): As of June 30, 2018 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 103,464 $ (35,030 ) $ 68,434 5.08 Trade names 44,456 (9,655 ) 34,801 19.73 Non-competes 19,101 (10,314 ) 8,787 3.06 Leasehold interests 12,480 (4,220 ) 8,260 6.28 Favorable contracts 4,034 (3,607 ) 427 1.50 Total definite-lived intangible assets 183,535 (62,826 ) 120,709 9.23 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 185,013 $ (62,826 ) $ 122,187 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment. As of December 31, 2017 Gross Accumulated Amortization Net Weighted Average Remaining Life (In Years) Definite-lived intangible assets Customer relationships $ 89,933 $ (28,092 ) $ 61,841 5.47 Trade names 44,456 (8,120 ) 36,336 19.87 Non-competes 16,875 (8,510 ) 8,365 2.93 Leasehold interests 12,480 (3,378 ) 9,102 6.66 Favorable contracts 4,034 (3,033 ) 1,001 1.35 Total definite-lived intangible assets 167,778 (51,133 ) 116,645 9.83 Indefinite-lived intangible assets Land rights (1) 1,478 — 1,478 Total purchased intangible assets $ 169,256 $ (51,133 ) $ 118,123 (1) Land rights acquired in a prior year acquisition will be reclassified to property, plant, and equipment upon the division of certain shared properties and settlement of the associated deferred payment.
Schedule of Estimated Remaining Amortization of Definite-Lived Intangible Assets	As of June 30, 2018 , the estimated future aggregate amortization expense of definite-lived intangible assets from the 2018 and 2017 acquisitions was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 1,946 2019 3,892 2020 3,875 2021 3,690 2022 3,735 Thereafter 4,965 Total $ 22,103 As of June 30, 2018 , the estimated remaining amortization of our definite-lived intangible assets was as follows (in thousands): Year Ending December 31, 2018 (remainder of the year) $ 11,802 2019 22,193 2020 19,985 2021 18,376 2022 12,727 Thereafter 35,626 Total $ 120,709

DEBT (Tables)

DEBT (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of Debt and Capital Leases	Our debt and capital leases were as follows (in thousands): June 30, 2018 December 31, 2017 6.375% senior unsecured notes due 2024 and unamortized premium (1) $ 609,174 $ 609,949 Senior secured credit facility 60,400 9,000 Capital leases 62,632 53,324 Other financing 28,914 31,886 Debt issuance costs (10,566 ) (10,823 ) Total debt 750,554 693,336 Less: current maturities (28,753 ) (25,951 ) Long-term debt, net of current maturities $ 721,801 $ 667,385 (1) The effective interest rates for these notes were 6.56% for both June 30, 2018 and December 31, 2017 .

FAIR VALUE DISCLOSURES (Tables)

FAIR VALUE DISCLOSURES (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Hierarchy for Liabilities Measured at Fair Value on a Recurring Basis	The following tables present our fair value hierarchy for liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 (in thousands): June 30, 2018 Total Level 1 Level 2 Level 3 Contingent consideration, including current portion (1) $ 59,371 $ — $ — $ 59,371 $ 59,371 $ — $ — $ 59,371 December 31, 2017 Total Level 1 Level 2 Level 3 Contingent consideration, including current portion (1) $ 61,817 $ — $ — $ 61,817 $ 61,817 $ — $ — $ 61,817 (1) The current portion of contingent consideration is included in accrued liabilities in our condensed consolidated balance sheets. The long-term portion of contingent consideration is included in other long-term obligations and deferred credits in our condensed consolidated balance sheets.
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	The following tables present the valuation inputs for the fair value estimates for our three model types of acquisition-related contingent consideration arrangements. We estimate the fair value of acquisition-related contingent consideration arrangements using a Monte Carlo simulation model, an income approach or a discounted cash flow technique, as appropriate. These fair value measurements are based on significant inputs not observable in the market, and thus represent Level 3 inputs. The fair value of the contingent consideration arrangements is sensitive to changes in the forecasts of earnings and/or the relevant operating metrics and changes in discount rates. The fair value of the contingent consideration is reassessed quarterly based on assumptions used in our latest projections and input provided by practice leaders and management. Any change in the fair value estimate is recorded in our consolidated statement of operations for that period. The use of different estimates and assumptions could increase or decrease the estimated fair value of our contingent consideration liability, which would result in different impacts to our consolidated balance sheets and consolidated statements of operations. As of June 30, 2018 Valuation Inputs Monte Carlo Simulation Income Approach Discounted Cash Flow Technique Fair value (in millions) $ 33.4 $ 24.7 $ 1.3 Discount rate 10.50% - 11.50% 3.70% - 5.00% 6.03% - 15.75% Payment cap (in millions) $ 37.3 $ 27.0 $ 1.4 Expected payment period remaining (in years) 2-4 1-5 1-5 Management projections of the payout criteria EBITDA/Volumes Permitted reserves/Volumes Volumes As of December 31, 2017 Valuation Inputs Monte Carlo Simulation Income Approach Discounted Cash Flow Technique Fair value (in millions) $ 37.1 $ 23.6 $ 1.1 Discount rate 9.75% - 11.75% 3.70% - 5.00% 6.03% - 15.75% Payment cap (in millions) $ 39.3 $ 26.0 $ 1.4 Expected payment period remaining (in years) 2-4 1-5 1-5 Management projections of the payout criteria EBITDA/Volumes Permitted reserves/Volumes Volumes
Reconciliation of the Changes in Level 3 Fair Value Measurements	The following table provides a reconciliation of the changes in Level 3 fair value measurements from December 31, 2017 to June 30, 2018 (in thousands): Contingent Consideration Balance at December 31, 2017 $ 61,817 Acquisitions (1) 893 Change in contingent consideration valuation (1,258 ) Payments of contingent consideration (2,081 ) Balance at June 30, 2018 $ 59,371 (1) Represents the fair value of the contingent consideration associated with the On Time acquisition as of the acquisition date.

NET EARNINGS (LOSS) PER SHARE (

NET EARNINGS (LOSS) PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Reconciliation of Components of Basic and Diluted Earnings (Loss) Per Share	The following is a reconciliation of the components of the basic and diluted earnings (loss) per share calculations for the three and six months ended June 30, 2018 and 2017 (in thousands): Three Months Ended Six Months Ended 2018 2017 (1) 2018 2017 Numerator for basic and diluted earnings per share: Income (loss) from continuing operations attributable to U.S. Concrete $ 16,265 $ (2,169 ) $ 12,407 $ 4,833 Loss from discontinued operations, net of taxes — (180 ) — (302 ) Net income (loss) attributable to U.S. Concrete $ 16,265 $ (2,349 ) $ 12,407 $ 4,531 Denominator for diluted earnings per share: Basic weighted average common shares outstanding 16,477 15,703 16,450 15,601 Restricted stock and restricted stock units 18 — 56 123 Warrants — — — 791 Stock options 11 — 12 16 Diluted weighted average common shares outstanding 16,506 15,703 16,518 16,531 (1) We reported a loss from continuing operations attributable to U.S. Concrete for the three months ended June 30, 2017; therefore, the share count used in the basic and diluted earnings per share calculation was the same.
Schedule of Potentially Dilutive Shares Excluded From Diluted Earnings (Loss) Per Share Calculations	The following table shows the type and number (in thousands) of potentially dilutive shares excluded from the diluted earnings (loss) per share calculations for the periods presented as their effect would have been anti-dilutive or they had not met their performance target: Three Months Ended Six Months Ended 2018 2017 2018 2017 Potentially dilutive shares: Unvested restricted stock awards and restricted stock units 171 275 141 131 Stock options — 19 — — Warrants — 1,127 — — Total potentially dilutive shares 171 1,421 141 131

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Certain Financial Information Relating to Continuing Operations by Reportable Segment	The following tables set forth certain financial information relating to our continuing operations by reportable segment (in thousands): Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue: Ready-mixed concrete Sales to external customers $ 350,027 $ 310,122 $ 639,267 $ 585,578 Aggregate products Sales to external customers 35,065 12,036 59,791 21,333 Intersegment sales 13,449 10,730 22,884 19,257 Total aggregate products 48,514 22,766 82,675 40,590 Total reportable segment revenue 398,541 332,888 721,942 626,168 Other products and eliminations 5,659 8,038 10,045 13,891 Total revenue $ 404,200 $ 340,926 $ 731,987 $ 640,059 Reportable Segment Adjusted EBITDA: Ready-mixed concrete $ 51,795 $ 49,646 $ 92,762 $ 91,150 Aggregate products 12,237 8,674 16,913 12,671 Total reportable segment Adjusted EBITDA $ 64,032 $ 58,320 $ 109,675 $ 103,821 Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations: Total reportable segment Adjusted EBITDA $ 64,032 $ 58,320 $ 109,675 $ 103,821 Other products and eliminations from operations 3,333 3,166 4,478 6,023 Corporate overhead (14,622 ) (14,714 ) (30,092 ) (25,706 ) Depreciation, depletion and amortization for reportable segments (20,877 ) (15,292 ) (40,036 ) (30,145 ) Acquisition-related costs — — (1,017 ) — Impairment of assets (1,299 ) — (1,299 ) — Hurricane-related losses for reportable segments 492 — 185 — Quarry dredge costs for specific event for reportable segment (365 ) — (556 ) — Purchase accounting adjustments for inventory — — (706 ) — Interest expense, net (11,514 ) (10,368 ) (22,823 ) (20,510 ) Corporate derivative loss — (15,766 ) — (13,910 ) Change in value of contingent consideration for reportable segments 1,626 (720 ) 1,258 (1,328 ) Corporate, other products and eliminations other income, net (236 ) 116 (661 ) 201 Income from continuing operations before income taxes 20,570 4,742 18,406 18,446 Income tax expense (4,292 ) (6,911 ) (5,944 ) (13,613 ) Income (loss) from continuing operations $ 16,278 $ (2,169 ) $ 12,462 $ 4,833 Three Months Ended Six Months Ended 2018 2017 2018 2017 Capital Expenditures: Ready-mixed concrete $ 6,948 $ 6,216 $ 13,466 $ 12,323 Aggregate products 5,258 1,409 6,086 5,677 Other products and corporate 256 349 1,285 692 Total capital expenditures $ 12,462 $ 7,974 $ 20,837 $ 18,692 Three Months Ended Six Months Ended 2018 2017 2018 2017 Revenue by Product: Ready-mixed concrete $ 350,027 $ 310,122 $ 639,267 $ 585,578 Aggregate products 35,065 12,036 59,791 21,333 Aggregates distribution 6,249 7,500 10,370 12,953 Building materials 7,269 6,674 13,130 10,744 Lime 3,219 2,445 5,511 5,140 Hauling 1,593 1,260 2,705 2,601 Other 778 889 1,213 1,710 Total revenue $ 404,200 $ 340,926 $ 731,987 $ 640,059 As of June 30, 2018 As of December 31, 2017 Identifiable Property, Plant and Equipment Assets: Ready-mixed concrete $ 292,897 $ 266,584 Aggregate products 352,145 342,090 (1) Other products and corporate 29,150 27,594 (1) Total identifiable assets $ 674,192 $ 636,268 (1) $27.5 million has been reclassified to aggregate products from other products and corporate due to the segment reporting change made during the three months ended June 30, 2018.

SUPPLEMENTAL CONDENSED CONSOL30

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Balance Sheet	CONDENSED CONSOLIDATING BALANCE SHEET JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated ASSETS Current assets: Cash and cash equivalents $ — $ 12,713 $ 8,798 $ — $ 21,511 Trade accounts receivable, net — 239,109 8,525 — 247,634 Inventories — 41,496 7,288 — 48,784 Prepaid expenses — 7,974 307 — 8,281 Other receivables 5,776 6,366 55 — 12,197 Other current assets — 4,437 2,845 — 7,282 Intercompany receivables 14,394 — — (14,394 ) — Total current assets 20,170 312,095 27,818 (14,394 ) 345,689 Property, plant and equipment, net — 457,426 216,766 — 674,192 Goodwill — 156,637 60,679 — 217,316 Intangible assets, net — 119,945 2,242 — 122,187 Deferred income taxes — — 677 (677 ) — Investment in subsidiaries 571,615 — — (571,615 ) — Long-term intercompany receivables 369,555 — — (369,555 ) — Other assets — 6,243 948 — 7,191 Total assets $ 961,340 $ 1,052,346 $ 309,130 $ (956,241 ) $ 1,366,575 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 652 $ 127,887 $ 1,740 $ — $ 130,279 Accrued liabilities 4,589 73,719 7,620 — 85,928 Current maturities of long-term debt — 28,169 584 — 28,753 Intercompany payables — — 14,394 (14,394 ) — Total current liabilities 5,241 229,775 24,338 (14,394 ) 244,960 Long-term debt, net of current maturities 659,008 62,303 490 — 721,801 Other long-term obligations and deferred credits 875 74,763 2,885 — 78,523 Deferred income taxes — 4,170 — (677 ) 3,493 Long-term intercompany payables — 249,217 120,338 (369,555 ) — Total liabilities 665,124 620,228 148,051 (384,626 ) 1,048,777 Total shareholders' equity 296,216 432,118 139,497 (571,615 ) 296,216 Non-controlling interest — — 21,582 — 21,582 Total equity 296,216 432,118 161,079 (571,615 ) 317,798 Total liabilities and equity $ 961,340 $ 1,052,346 $ 309,130 $ (956,241 ) $ 1,366,575 CONDENSED CONSOLIDATING BALANCE SHEET DECEMBER 31, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated ASSETS Current assets: Cash and cash equivalents $ — $ 6,970 $ 15,611 $ — $ 22,581 Trade accounts receivable, net — 208,669 5,552 — 214,221 Inventories — 41,006 7,079 — 48,085 Prepaid expenses — 4,723 574 — 5,297 Other receivables 16,256 2,644 291 — 19,191 Other current assets — 2,307 3 — 2,310 Intercompany receivables 14,628 — — (14,628 ) — Total current assets 30,884 266,319 29,110 (14,628 ) 311,685 Property, plant and equipment, net — 416,888 219,380 — 636,268 Goodwill — 142,221 62,510 — 204,731 Intangible assets, net — 115,570 2,553 — 118,123 Deferred income taxes — — 674 (674 ) — Investment in subsidiaries 544,256 — — (544,256 ) — Long-term intercompany receivables 322,193 — — (322,193 ) — Other assets — 4,384 943 — 5,327 Total assets $ 897,333 $ 945,382 $ 315,170 $ (881,751 ) $ 1,276,134 LIABILITIES AND EQUITY Current liabilities: Accounts payable $ 17 $ 115,465 $ 1,588 $ — $ 117,070 Accrued liabilities 6,703 53,097 5,620 — 65,420 Current maturities of long-term debt — 25,284 667 — 25,951 Intercompany payables — — 14,628 (14,628 ) — Total current liabilities 6,720 193,846 22,503 (14,628 ) 208,441 Long-term debt, net of current maturities 608,127 58,545 713 — 667,385 Other long-term obligations and deferred credits 2,035 88,743 2,563 — 93,341 Deferred income taxes — 5,499 — (674 ) 4,825 Long-term intercompany payables — 195,282 126,911 (322,193 ) — Total liabilities 616,882 541,915 152,690 (337,495 ) 973,992 Total shareholders' equity 280,451 403,467 140,789 (544,256 ) 280,451 Non-controlling interest — — 21,691 — 21,691 Total equity 280,451 403,467 162,480 (544,256 ) 302,142 Total liabilities and equity $ 897,333 $ 945,382 $ 315,170 $ (881,751 ) $ 1,276,134
Condensed Consolidating Statement of Operations	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS THREE MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 375,316 $ 28,884 $ — $ 404,200 Cost of goods sold before depreciation, depletion and amortization — 298,667 21,571 — 320,238 Selling, general and administrative expenses — 30,494 1,381 — 31,875 Depreciation, depletion and amortization — 18,491 3,651 — 22,142 Change in value of contingent consideration 46 (1,672 ) — — (1,626 ) Impairment of assets — 1,299 — — 1,299 Loss (gain) on sale of assets, net — (385 ) 14 — (371 ) Operating income (loss) (46 ) 28,422 2,267 — 30,643 Interest expense, net 10,058 910 546 — 11,514 Other expense (income), net 811 (1,531 ) (721 ) — (1,441 ) Income (loss) before income taxes, equity in earnings of subsidiaries and non-controlling interest (10,915 ) 29,043 2,442 — 20,570 Income tax expense (benefit) (3,093 ) 7,335 50 — 4,292 Net income (loss) before equity in earnings of subsidiaries and non-controlling interest (7,822 ) 21,708 2,392 — 16,278 Equity in earnings of subsidiaries 24,087 — — (24,087 ) — Net income (loss) 16,265 21,708 2,392 (24,087 ) 16,278 Less: Net income attributable to non-controlling interest — — (13 ) — (13 ) Net income (loss) attributable to U.S. Concrete $ 16,265 $ 21,708 $ 2,379 $ (24,087 ) $ 16,265 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS THREE MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 335,468 $ 5,458 $ — $ 340,926 Cost of goods sold before depreciation, depletion and amortization — 259,733 3,841 — 263,574 Selling, general and administrative expenses — 29,457 743 — 30,200 Depreciation, depletion and amortization — 15,561 789 — 16,350 Change in value of contingent consideration 139 581 — — 720 Gain on sale of assets, net — (198 ) — — (198 ) Operating income (loss) (139 ) 30,334 85 — 30,280 Interest expense, net 9,989 379 — — 10,368 Derivative loss 15,766 — — — 15,766 Other expense (income), net — (622 ) 26 — (596 ) Income (loss) from continuing operations, before income taxes and equity in earnings of subsidiaries (25,894 ) 30,577 59 — 4,742 Income tax expense (benefit) (3,702 ) 10,610 3 — 6,911 Net income (loss) from continuing operations before equity in earnings of subsidiaries (22,192 ) 19,967 56 — (2,169 ) Loss from discontinued operations, net of taxes and before equity in earnings of subsidiaries — (180 ) — — (180 ) Net income (loss) before equity in earnings of subsidiaries (22,192 ) 19,787 56 — (2,349 ) Equity in earnings of subsidiaries 19,843 — — (19,843 ) — Net income (loss) $ (2,349 ) $ 19,787 $ 56 $ (19,843 ) $ (2,349 )
Condensed Consolidating Statement of Cash Flows	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS SIX MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 684,145 $ 47,842 $ — $ 731,987 Cost of goods sold before depreciation, depletion and amortization — 549,283 38,187 — 587,470 Selling, general and administrative expenses — 60,096 4,055 — 64,151 Depreciation, depletion and amortization — 35,776 6,941 — 42,717 Change in value of contingent consideration 89 (1,347 ) — — (1,258 ) Impairment of assets — 1,299 — — 1,299 Loss (gain) on sale of assets, net — (575 ) 14 — (561 ) Operating income (loss) (89 ) 39,613 (1,355 ) — 38,169 Interest expense, net 19,827 1,801 1,195 — 22,823 Other expense (income), net 811 (2,535 ) (1,336 ) — (3,060 ) Income (loss) before income taxes, equity in earnings of subsidiaries and non-controlling interest (20,727 ) 40,347 (1,214 ) — 18,406 Income tax expense (benefit) (5,776 ) 11,699 21 — 5,944 Net income (loss) before equity in earnings of subsidiaries and non-controlling interest (14,951 ) 28,648 (1,235 ) — 12,462 Equity in earnings of subsidiaries 27,358 — — (27,358 ) — Net income (loss) 12,407 28,648 (1,235 ) (27,358 ) 12,462 Less: Net income attributable to non-controlling interest — — (55 ) — (55 ) Net income (loss) attributable to U.S. Concrete $ 12,407 $ 28,648 $ (1,290 ) $ (27,358 ) $ 12,407 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS SIX MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations and Reclassifications U.S. Concrete Consolidated Revenue $ — $ 629,491 $ 10,568 $ — $ 640,059 Cost of goods sold before depreciation, depletion and amortization — 491,024 8,309 — 499,333 Selling, general and administrative expenses — 54,655 1,362 — 56,017 Depreciation, depletion and amortization — 30,929 1,280 — 32,209 Change in value of contingent consideration 280 1,048 — — 1,328 Loss (gain) on sale of assets, net — (392 ) 2 — (390 ) Operating income (loss) (280 ) 52,227 (385 ) — 51,562 Interest expense, net 19,688 822 — — 20,510 Derivative loss 13,910 — — — 13,910 Other expense (income), net — (1,373 ) 69 — (1,304 ) Income (loss) from continuing operations, before income taxes and equity in earnings of subsidiaries (33,878 ) 52,778 (454 ) — 18,446 Income tax expense (benefit) (7,467 ) 21,097 (17 ) — 13,613 Net income (loss) from continuing operations before equity in earnings of subsidiaries (26,411 ) 31,681 (437 ) — 4,833 Loss from discontinued operations, net of taxes and before equity in earnings of subsidiaries — (302 ) — — (302 ) Net income (loss) before equity in earnings of subsidiaries (26,411 ) 31,379 (437 ) — 4,531 Equity in earnings of subsidiaries 30,942 — — (30,942 ) — Net income (loss) $ 4,531 $ 31,379 $ (437 ) $ (30,942 ) $ 4,531 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS SIX MONTHS ENDED JUNE 30, 2018 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations U.S. Concrete Consolidated Net cash provided by (used in) operating activities $ (21,669 ) $ 61,128 $ 1,461 $ 6,940 $ 47,860 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (19,432 ) (1,405 ) — (20,837 ) Payments for acquisitions, net of cash acquired — (61,111 ) — — (61,111 ) Proceeds from sale of property, plant and equipment — 997 88 — 1,085 Proceeds from disposals of businesses — 158 — — 158 Insurance proceeds from property loss claims — 1,634 500 — 2,134 Net cash used in investing activities — (77,754 ) (817 ) — (78,571 ) CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from revolver borrowings 228,613 — — — 228,613 Repayments of revolver borrowings (177,213 ) — — — (177,213 ) Proceeds from exercise of stock options 78 — — — 78 Payments of other long-term obligations (2,215 ) (1,325 ) — — (3,540 ) Payments for other financing — (13,404 ) (305 ) — (13,709 ) Other treasury share purchases (1,869 ) — — — (1,869 ) Cash paid to non-controlling interest — — (249 ) — (249 ) Other proceeds — 464 — — 464 Intercompany funding (25,725 ) 39,470 (6,805 ) (6,940 ) — Net cash provided by (used in) financing activities 21,669 25,205 (7,359 ) (6,940 ) 32,575 EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS — — (98 ) — (98 ) NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH — 8,579 (6,813 ) — 1,766 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD — 6,970 15,611 — 22,581 CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD $ — $ 15,549 $ 8,798 $ — $ 24,347 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS SIX MONTHS ENDED JUNE 30, 2017 (in thousands) Parent Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations U.S. Concrete Consolidated Net cash provided by (used in) operating activities $ 20,700 $ 61,704 $ 2,072 $ (31,321 ) $ 53,155 CASH FLOWS FROM INVESTING ACTIVITIES: Purchases of property, plant and equipment — (16,612 ) (2,080 ) — (18,692 ) Payments for acquisitions, net of cash acquired 469 (33,305 ) — — (32,836 ) Proceeds from sale of property, plant and equipment — 841 — — 841 Proceeds from disposals of businesses — 873 — — 873 Investment in subsidiaries (646 ) — — 646 — Net cash provided by (used in) investing activities (177 ) (48,203 ) (2,080 ) 646 (49,814 ) CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from issuance of debt 211,500 — — — 211,500 Proceeds from exercise of stock options and warrants 494 — — — 494 Payments of other long-term obligations (2,925 ) (1,611 ) — — (4,536 ) Payments for other financing — (8,778 ) — — (8,778 ) Debt issuance costs (3,231 ) — — — (3,231 ) Other treasury share purchases (2,825 ) — — — (2,825 ) Intercompany funding (223,536 ) 191,666 1,195 30,675 — Net cash provided by (used in) financing activities (20,523 ) 181,277 1,195 30,675 192,624 NET INCREASE IN CASH AND CASH EQUIVALENTS — 194,778 1,187 — 195,965 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD — 75,576 198 — 75,774 CASH AND CASH EQUIVALENTS AT END OF PERIOD $ — $ 270,354 $ 1,385 $ — $ 271,739

RESTRICTED CASH (Tables)

RESTRICTED CASH (Tables)	6 Months Ended
	Jun. 30, 2018
Restricted Cash [Abstract]
Schedule of Cash and Cash Equivalents	RESTRICTED CASH The following table provides a reconciliation of cash and cash equivalents and restricted cash (in thousands) as reported within our condensed consolidated balance sheets to the same items as reported in our condensed consolidated statement of cash flows: June 30, 2018 December 31, 2017 Cash and cash equivalents $ 21,511 $ 22,581 Restricted cash included in other current assets 2,836 — Total cash and cash equivalents and restricted cash $ 24,347 $ 22,581
Restrictions on cash and cash equivalents	The following table provides a reconciliation of cash and cash equivalents and restricted cash (in thousands) as reported within our condensed consolidated balance sheets to the same items as reported in our condensed consolidated statement of cash flows: June 30, 2018 December 31, 2017 Cash and cash equivalents $ 21,511 $ 22,581 Restricted cash included in other current assets 2,836 — Total cash and cash equivalents and restricted cash $ 24,347 $ 22,581

BUSINESS COMBINATIONS - 2018 Ac

BUSINESS COMBINATIONS - 2018 Acquistions Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2017USD ($)processing_facility	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)processing_facilitybusiness	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)processing_facility
Business Acquisition [Line Items]
Number of assets acquired | processing_facility	2
Consideration satisfied in cash						$ 298,400
Fair value contingent consideration	$ 24,000	$ 893	$ 0	$ 893	$ 0	$ 24,000
Business combination, acquisition related costs		0	0	$ 1,017	0
Atlantic Region and West Texas
Business Acquisition [Line Items]
Number of businesses acquired | business				3
Total aggregate consideration				$ 60,800
Consideration satisfied in cash				59,900
Fair value contingent consideration		900		$ 900
Number of assets acquired, mixer trucks				140		51
Number of assets acquired, ready-mix concrete plants | processing_facility				19		7
Number of aggregate distribution terminals				1		4
Business combination, acquisition related costs		$ 0	$ 500	$ 500	$ 700

BUSINESS COMBINATIONS - 2018 33

BUSINESS COMBINATIONS - 2018 Acquisitions Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Business Acquisition [Line Items]
Goodwill	$ 217,316	$ 204,731
Fair value contingent consideration	893	$ 24,000	$ 0
Atlantic Region and West Texas
Business Acquisition [Line Items]
Inventory	674
Other current assets	77
Property, plant and equipment	30,235
Definite-lived intangible assets	15,450
Total assets acquired	46,436
Total liabilities assumed	153
Goodwill	14,556
Total consideration (fair value)	60,839
Fair value contingent consideration	$ 900

BUSINESS COMBINATIONS - 2017 Ac

BUSINESS COMBINATIONS - 2017 Acquisitions (Narrative) (Details) $ in Thousands, T in Millions	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2017USD ($)aprocessing_facilitybusiness	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)processing_facilitybusiness	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)aprocessing_facilitybusinessT
Business Acquisition [Line Items]
Number of assets acquired | processing_facility	2
Consideration satisfied in cash						$ 298,400
Payments deferred						$ 5,500
Payments deferred, term of deferral						4 years
Payment cap	$ 24,000	$ 893	$ 0	$ 893	$ 0	$ 24,000
Area of Land | a	409					409
Proven Reserves Acquired | T						130
Business combination, acquisition related costs		0	0	$ 1,017	0
Atlantic Region And Northern California
Business Acquisition [Line Items]
Number of operations acquired | business						8
Total consideration						$ 327,900
Atlantic Region and West Texas
Business Acquisition [Line Items]
Number of operations acquired | business				3
Total consideration				$ 60,800
Consideration satisfied in cash				59,900
Payment cap		900		$ 900
Number of aggregate distribution terminals				1		4
Business combination, acquisition related costs		$ 0	$ 500	$ 500	$ 700
Number of assets acquired, mixer trucks				140		51
Number of assets acquired, ready-mix concrete plants | processing_facility				19		7
Other
Business Acquisition [Line Items]
Number of operations acquired | business	3
Number of assets acquired | processing_facility	2
Eliminations and Reclassifications | Polaris
Business Acquisition [Line Items]
Notes receivable, related parties	$ 18,100					$ 18,100

BUSINESS COMBINATIONS - 2017 35

BUSINESS COMBINATIONS - 2017 Acquisitions Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 217,316	$ 204,731
Contingent consideration, including current portion	59,371	61,817
Polaris
Business Acquisition [Line Items]
Cash		20,678
Accounts receivable		4,561
Inventory		6,022
Other current assets		1,522
Property, plant and equipment		199,316
Other long-term assets		896
Definite-lived intangible assets		0
Total assets acquired		232,995
Current liabilities		26,465
Other long-term liabilities		2,999
Total liabilities assumed		29,464
Non-controlling interest		21,442
Goodwill		60,679
Total consideration (fair value)		242,768
Acquired receivable fair value		4,600
Acquired receivable, gross contractual amount		4,900
2017 Acquisitions Excluding Polaris
Business Acquisition [Line Items]
Cash		0
Accounts receivable		1,110
Inventory		695
Other current assets		48
Property, plant and equipment		63,221
Other long-term assets		0
Definite-lived intangible assets		8,331
Total assets acquired		73,405
Current liabilities		1,081
Other long-term liabilities		62
Total liabilities assumed		1,143
Non-controlling interest		0
Goodwill		12,837
Total consideration (fair value)		85,099
Contingent consideration, including current portion		29,500
Eliminations and Reclassifications
Business Acquisition [Line Items]
Goodwill	$ 0	0
Eliminations and Reclassifications | Polaris
Business Acquisition [Line Items]
Current liabilities		$ 14,200

BUSINESS COMBINATIONS - Acquire

BUSINESS COMBINATIONS - Acquired Intangibles Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Amortization expense	$ 6.2	$ 5.1	$ 11.6	$ 10.3
Acquisitions 2018 and 2017
Business Acquisition [Line Items]
Amortization expense	$ 1.1		$ 1.4

BUSINESS COMBINATIONS - Schedul

BUSINESS COMBINATIONS - Schedule of Major Classes of Intangible Assets Acquired (Details) - Acquisitions 2018 and 2017 $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Business Acquisition [Line Items]
Fair Value At Acquisition Date	$ 23,781
Customer relationships
Business Acquisition [Line Items]
Weighted Average Amortization Period (In Years)	6 years 10 months 10 days
Fair Value At Acquisition Date	$ 21,171
Non-compete agreements
Business Acquisition [Line Items]
Weighted Average Amortization Period (In Years)	5 years
Fair Value At Acquisition Date	$ 2,226
Favorable contract
Business Acquisition [Line Items]
Weighted Average Amortization Period (In Years)	3 years 8 months 1 day
Fair Value At Acquisition Date	$ 384

BUSINESS COMBINATIONS - Sched38

BUSINESS COMBINATIONS - Schedule of Estimated Future Aggregate Amortization Expense of Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Year Ending December 31,
2018 (remainder of the year)	$ 11,802
2,019	22,193
2,020	19,985
2,021	18,376
2,022	12,727
Thereafter	35,626
Total	120,709	$ 116,645
Acquisitions 2018 and 2017
Year Ending December 31,
2018 (remainder of the year)	1,946
2,019	3,892
2,020	3,875
2,021	3,690
2,022	3,735
Thereafter	4,965
Total	$ 22,103

BUSINESS COMBINATIONS - Actual

BUSINESS COMBINATIONS - Actual and Pro Forma Impact of Acquisitions (Narrative) (Details) - Acquisitions 2018 and 2017 - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Revenue	$ 46.9	$ 0.5	$ 77.2	$ 0.5
Operating income (loss)	$ 6.2	$ 0.5	$ 6.1	$ 0.5

BUSINESS COMBINATIONS - Sched40

BUSINESS COMBINATIONS - Schedule of Unaudited Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Combinations [Abstract]
Revenue from continuing operations	$ 404,200	$ 378,692	$ 746,725	$ 720,709
Net income (loss) attributable to U.S. Concrete	$ 16,440	$ (2,117)	$ 13,794	$ 5,232
Net income per share, basic (in dollars per share)	$ 1	$ (0.13)	$ 0.84	$ 0.34
Net income per share, diluted (in dollars per share)	$ 1	$ (0.13)	$ 0.84	$ 0.32

BUSINESS COMBINATIONS - Sched41

BUSINESS COMBINATIONS - Schedule of Adjustments Reflected in Pro Forma Net Income (Loss) and Net Income (Loss) Per Share Amounts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Increase in intangible amortization expense	$ (6,200)	$ (5,100)	$ (11,600)	$ (10,300)
Decrease (increase) in income tax expense	(4,292)	(6,911)	(5,944)	(13,613)
Acquisition-related Costs
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Increase in intangible amortization expense	0	(902)	(523)	(1,804)
Increase in depreciation expense	0	(3,325)	0	(4,500)
Exclusion of buyer transaction costs	159	413	851	644
Exclusion of seller transaction costs	0	0	0	3,224
Increase in expenses related to conversions from IFRS(1) to U.S. GAAP	0	(44)	0	(113)
Decrease (increase) in income tax expense	16	(923)	(474)	(1,416)
Increase in non-controlling loss	0	$ (143)	0	$ (280)
Acquisitions 2018 and 2017
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Increase in intangible amortization expense	$ (1,100)		$ (1,400)

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 44,288	$ 44,238
Building materials for resale	2,998	2,192
Other	1,498	1,655
Total inventories	$ 48,784	$ 48,085

GOODWILL AND OTHER INTANGIBLE43

GOODWILL AND OTHER INTANGIBLES - Schedule of Changes in Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Goodwill
Goodwill, gross	$ 210,484
2018 acquisitions (1)	14,556
Measurement period adjustments for prior year business combinations	(1,971)
Goodwill, gross at June 30, 2018	223,069
Accumulated impairment at December 31, 2017 and June 30, 2018	(5,753)
Goodwill, net at June 30, 2018	217,316	$ 204,731
Business combination, consideration transferred, working capital adjustments	(700)
Goodwill, reclassifications	9,600
Acquisitions 2,017
Goodwill [Line Items]
Busines Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Definite-lived Intangible Assets	2,300
Goodwill
Purchase accounting adjustments, property, plant and equipment	2,700
Definite-lived intangible asset included in measurement period adjustments	300
Ready-Mixed Concrete Segment
Goodwill
Goodwill, gross	139,834
2018 acquisitions (1)	13,697
Measurement period adjustments for prior year business combinations	(340)
Goodwill, gross at June 30, 2018	153,191
Accumulated impairment at December 31, 2017 and June 30, 2018	(4,414)
Goodwill, net at June 30, 2018	148,777
Aggregate Products Segment
Goodwill
Goodwill, gross	57,438
2018 acquisitions (1)	0
Measurement period adjustments for prior year business combinations	6,911
Goodwill, gross at June 30, 2018	64,349
Accumulated impairment at December 31, 2017 and June 30, 2018	(1,339)
Goodwill, net at June 30, 2018	63,010
Other Non-Reportable Segments
Goodwill
Goodwill, gross	13,212
2018 acquisitions (1)	859
Measurement period adjustments for prior year business combinations	(8,542)
Goodwill, gross at June 30, 2018	5,529
Accumulated impairment at December 31, 2017 and June 30, 2018	0
Goodwill, net at June 30, 2018	$ 5,529

GOODWILL AND OTHER INTANGIBLE44

GOODWILL AND OTHER INTANGIBLES - Schedule of Purchased Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 183,535	$ 167,778
Accumulated Amortization	(62,826)	(51,133)
Total	$ 120,709	$ 116,645
Weighted Average Remaining Life	9 years 2 months 23 days	9 years 9 months 29 days
Total purchased intangible assets, Gross	$ 185,013	$ 169,256
Total purchased intangible assets, Accumulated Amortization	(62,826)	(51,133)
Total purchased intangible assets, Net	122,187	118,123
Land rights
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	1,478	1,478
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	103,464	89,933
Accumulated Amortization	(35,030)	(28,092)
Total	$ 68,434	$ 61,841
Weighted Average Remaining Life	5 years 29 days	5 years 5 months 19 days
Total purchased intangible assets, Accumulated Amortization	$ (35,030)	$ (28,092)
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	44,456	44,456
Accumulated Amortization	(9,655)	(8,120)
Total	$ 34,801	$ 36,336
Weighted Average Remaining Life	19 years 8 months 23 days	19 years 10 months 13 days
Total purchased intangible assets, Accumulated Amortization	$ (9,655)	$ (8,120)
Non-competes
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	19,101	16,875
Accumulated Amortization	(10,314)	(8,510)
Total	$ 8,787	$ 8,365
Weighted Average Remaining Life	3 years 22 days	2 years 11 months 5 days
Total purchased intangible assets, Accumulated Amortization	$ (10,314)	$ (8,510)
Leasehold interests
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	12,480	12,480
Accumulated Amortization	(4,220)	(3,378)
Total	$ 8,260	$ 9,102
Weighted Average Remaining Life	6 years 3 months 11 days	6 years 7 months 28 days
Total purchased intangible assets, Accumulated Amortization	$ (4,220)	$ (3,378)
Favorable contracts
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	4,034	4,034
Accumulated Amortization	(3,607)	(3,033)
Total	$ 427	$ 1,001
Weighted Average Remaining Life	1 year 6 months	1 year 4 months 6 days
Total purchased intangible assets, Accumulated Amortization	$ (3,607)	$ (3,033)

GOODWILL AND OTHER INTANGIBLE45

GOODWILL AND OTHER INTANGIBLES - Schedule of Estimated Remaining Amortization of Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
2018 (remainder of the year)	$ 11,802
2,019	22,193
2,020	19,985
2,021	18,376
2,022	12,727
Thereafter	35,626
Total	$ 120,709	$ 116,645

GOODWILL AND OTHER INTANGIBLE46

GOODWILL AND OTHER INTANGIBLES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 6.2	$ 5.1	$ 11.6	$ 10.3
Unfavorable lease intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Unfavorable lease intangible, gross carrying amount	1.5		1.5		$ 1.5
Unfavorable lease intangible, net carrying amount	$ 0.9		$ 0.9		$ 1
Weighted average remaining life			4 years 7 months 10 days

DEBT - Schedule of Debt and Cap

DEBT - Schedule of Debt and Capital Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Capital leases	$ 62,632	$ 53,324
Debt issuance costs	(10,566)	(10,823)
Total debt	750,554	693,336
Less: current maturities	(28,753)	(25,951)
Long-term debt, net of current maturities	721,801	667,385
Unsecured notes | Senior unsecured notes due 2024 and unamortized premium
Debt Instrument [Line Items]
Long-term debt	$ 609,174	$ 609,949
Stated interest rate	6.375%
Effective interest rate (as a percent)	6.56%	6.56%
Senior secured credit facility
Debt Instrument [Line Items]
Long-term debt	$ 60,400	$ 9,000
Other financing
Debt Instrument [Line Items]
Long-term debt	$ 28,914	$ 31,886

DEBT - Senior Secured Credit Fa

DEBT - Senior Secured Credit Facility (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Senior Secured Credit Facility
Line of Credit Facility [Line Items]
Weighted average interest rate	3.53%
Line of Credit | Third Loan Agreement | Letter of Credit
Line of Credit Facility [Line Items]
Undrawn standby letters of credit	$ 17.5
Line of Credit | Third Loan Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum availability under the Revolving Facility	$ 173.6
Fixed charge coverage ratio, minimum required	100.00%
Fixed charge coverage ratio, measurement period	12 months

FAIR VALUE DISCLOSURES - Fair

FAIR VALUE DISCLOSURES - Fair Value Hierarchy for Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Contingent consideration, including current portion	$ 59,371	$ 61,817
Liabilities, fair value	59,371	61,817
Level 1
Derivative [Line Items]
Contingent consideration, including current portion	0	0
Liabilities, fair value	0	0
Level 2
Derivative [Line Items]
Contingent consideration, including current portion	0	0
Liabilities, fair value	0	0
Level 3
Derivative [Line Items]
Contingent consideration, including current portion	59,371	61,817
Liabilities, fair value	$ 59,371	$ 61,817

FAIR VALUE DISCLOSURES - Summar

FAIR VALUE DISCLOSURES - Summary Of Assumptions Used In Calculating Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 59,371	$ 61,817
Payment cap	893	24,000	$ 0
Monte Carlo Simulation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	33,400	37,100
Payment cap	37,300	39,300
Income Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	24,700	23,600
Payment cap	27,000	26,000
Discounted Cash Flow Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,300	1,100
Payment cap	$ 1,400	$ 1,400
Minimum | Monte Carlo Simulation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	10.50%	9.75%
Expected payment period remaining (in years)	2 years	2 years
Minimum | Income Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	3.70%	3.70%
Expected payment period remaining (in years)	1 year	1 year
Minimum | Discounted Cash Flow Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	6.03%	6.03%
Expected payment period remaining (in years)	1 year	1 year
Maximum | Monte Carlo Simulation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	11.50%	11.75%
Expected payment period remaining (in years)	4 years	4 years
Maximum | Income Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	5.00%	5.00%
Expected payment period remaining (in years)	5 years	5 years
Maximum | Discounted Cash Flow Technique
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate	15.75%	15.75%
Expected payment period remaining (in years)	5 years	5 years

FAIR VALUE DISCLOSURES - Recon

FAIR VALUE DISCLOSURES - Reconciliation of the Changes in Level 3 Fair Value Measurements (Details) - Contingent Consideration $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Contingent Consideration
Balance at December 31, 2017	$ 61,817
Acquisitions	893
Change in contingent consideration valuation	(1,258)
Payments of contingent consideration	(2,081)
Balance at June 30, 2018	$ 59,371

FAIR VALUE DISCLOSURES - Narra

FAIR VALUE DISCLOSURES - Narrative (Details) - Unsecured notes - Senior Unsecured Notes $ in Millions	Jun. 30, 2018USD ($)
Debt Instrument [Line Items]
Stated interest rate	6.375%
Fair value of long-term debt	$ 601.5

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income tax expense allocated to continuing operations	$ 4,292	$ 6,911	$ 5,944	$ 13,613
Effective income tax rate reconciliation, percent			32.30%	73.80%
Deferred income taxes	$ 1,300
Derivative loss, noncash		$ 13,900		$ 13,900
Unrecognized tax benefits			$ 200	$ 5,700

NET EARNINGS (LOSS) PER SHARE -

NET EARNINGS (LOSS) PER SHARE - Reconciliation of Components of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator for basic and diluted earnings per share:
Income (loss) from continuing operations attributable to U.S. Concrete	$ 16,265	$ (2,169)	$ 12,407	$ 4,833
Loss from discontinued operations, net of taxes	0	(180)	0	(302)
Net income (loss) attributable to U.S. Concrete	$ 16,265	$ (2,349)	$ 12,407	$ 4,531
Denominator for diluted earnings per share:
Basic weighted average common shares outstanding (in shares)	16,477	15,703	16,450	15,601
Restricted stock awards and restricted stock units (in shares)	18	0	56	123
Warrants (in shares)	0	0	0	791
Stock options (in shares)	11	0	12	16
Denominator for diluted earnings per share (in shares)	16,506	15,703	16,518	16,531

NET EARNINGS (LOSS) PER SHARE55

NET EARNINGS (LOSS) PER SHARE - Schedule of Potentially Dilutive Shares Excluded From Diluted Earnings (Loss) Per Share Calculations (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares (in shares)	171	1,421	141	131
Unvested restricted stock awards and restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares (in shares)	171	275	141	131
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares (in shares)	0	19	0	0
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares (in shares)	0	1,127	0	0

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	Apr. 05, 2018	Jun. 30, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Contingent liability for performance	$ 300,000
Eagle Rock Materials Ltd., Interest Charges
Loss Contingencies [Line Items]
Contingent liability for performance		$ 400,000
Eagle Rock Materials Ltd., Royalties And Interest
Loss Contingencies [Line Items]
Contingent liability for performance		2,200,000
Insurance programs
Loss Contingencies [Line Items]
Amount accrued for estimated losses		20,200,000	$ 19,200,000
Performance bonds
Loss Contingencies [Line Items]
Contingent liability for performance		$ 35,000,000
Minimum
Loss Contingencies [Line Items]
Loss contingency, damages sought, value	2,500
Maximum
Loss Contingencies [Line Items]
Loss contingency, damages sought, value	$ 25,000

SEGMENT INFORMATION - Reconcili

SEGMENT INFORMATION - Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)reporting_segment	Jun. 30, 2017USD ($)
Segment Reporting [Abstract]
Number of reportable segments | reporting_segment			2
Segment Reporting Information [Line Items]
Revenue	$ 404,200	$ 340,926	$ 731,987	$ 640,059
Revenue:
Total revenue	404,200	340,926	731,987	640,059
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Operating income	30,643	30,280	38,169	51,562
Depreciation, depletion and amortization for reportable segments	(22,142)	(16,350)	(42,717)	(32,209)
Business Combination, Acquisition Related Costs	0	0	(1,017)	0
Impairment of assets	(1,299)	0	(1,299)	0
Purchase accounting adjustments for inventory	0	0	(706)	0
Interest expense, net	(11,514)	(10,368)	(22,823)	(20,510)
Corporate derivative loss	0	(15,766)	0	(13,910)
Corporate, other products and eliminations other income, net	1,441	596	3,060	1,304
Income from continuing operations before income taxes	20,570	4,742	18,406	18,446
Income tax expense	(4,292)	(6,911)	(5,944)	(13,613)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	16,278	(2,169)	12,462	4,833
Capital Expenditures:
Total capital expenditures	12,462	7,974	20,837	18,692
Reportable segment
Segment Reporting Information [Line Items]
Revenue	398,541	332,888	721,942	626,168
Reportable Segment Adjusted EBITDA:
Total reportable segment Adjusted EBITDA	64,032	58,320	109,675	103,821
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Total reportable segment Adjusted EBITDA	64,032	58,320	109,675	103,821
Depreciation, depletion and amortization for reportable segments	(20,877)	(15,292)	(40,036)	(30,145)
Interest expense, net	(11,514)	(10,368)	(22,823)	(20,510)
Change in value of contingent consideration for reportable segments	1,626	(720)	1,258	(1,328)
Reportable segment | Ready-mixed concrete
Segment Reporting Information [Line Items]
Revenue	350,027	310,122	639,267	585,578
Reportable Segment Adjusted EBITDA:
Total reportable segment Adjusted EBITDA	51,795	49,646	92,762	91,150
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Total reportable segment Adjusted EBITDA	51,795	49,646	92,762	91,150
Capital Expenditures:
Total capital expenditures	6,948	6,216	13,466	12,323
Reportable segment | Aggregate products
Segment Reporting Information [Line Items]
Revenue	48,514	22,766	82,675	40,590
Reportable Segment Adjusted EBITDA:
Total reportable segment Adjusted EBITDA	12,237	8,674	16,913	12,671
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Total reportable segment Adjusted EBITDA	12,237	8,674	16,913	12,671
Capital Expenditures:
Total capital expenditures	5,258	1,409	6,086	5,677
Reportable segment | Aggregate products
Segment Reporting Information [Line Items]
Revenue	35,065	12,036	59,791	21,333
Intersegment sales
Segment Reporting Information [Line Items]
Revenue	13,449	10,730	22,884	19,257
Other products and eliminations
Segment Reporting Information [Line Items]
Revenue	5,659	8,038	10,045	13,891
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Operating income	3,333	3,166	4,478	6,023
Corporate, other products and eliminations other income, net	(236)	116	(661)	201
Capital Expenditures:
Total capital expenditures	256	349	1,285	692
Corporate overhead
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Corporate overhead	(14,622)	(14,714)	(30,092)	(25,706)
Corporate derivative loss	0	(15,766)	0	(13,910)
Hurricane-related losses for reportable segments | Reportable segment
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Unusual or infrequent items	(492)	0	(185)	0
Quarry dredge costs for specific event for reportable segment | Reportable segment
Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations:
Unusual or infrequent items	$ (365)	$ 0	$ (556)	$ 0

SEGMENT INFORMATION - Revenue b

SEGMENT INFORMATION - Revenue by Product (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Total revenue	$ 404,200	$ 340,926	$ 731,987	$ 640,059
Ready-mixed concrete
Segment Reporting Information [Line Items]
Total revenue	350,027	310,122	639,267	585,578
Aggregate products
Segment Reporting Information [Line Items]
Total revenue	35,065	12,036	59,791	21,333
Aggregates distribution
Segment Reporting Information [Line Items]
Total revenue	6,249	7,500	10,370	12,953
Building materials
Segment Reporting Information [Line Items]
Total revenue	7,269	6,674	13,130	10,744
Lime
Segment Reporting Information [Line Items]
Total revenue	3,219	2,445	5,511	5,140
Hauling
Segment Reporting Information [Line Items]
Total revenue	1,593	1,260	2,705	2,601
Other
Segment Reporting Information [Line Items]
Total revenue	$ 778	$ 889	$ 1,213	$ 1,710

SEGMENT INFORMATION - Identifia

SEGMENT INFORMATION - Identifiable Property, Plant And Equipment Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total identifiable assets	$ 674,192	$ 636,268
Reclassified property, plant and equipment, net	27,500
Reportable segment | Ready-mixed concrete
Segment Reporting Information [Line Items]
Total identifiable assets	292,897	266,584
Reportable segment | Aggregate products
Segment Reporting Information [Line Items]
Total identifiable assets	352,145	342,090
Other products and corporate
Segment Reporting Information [Line Items]
Total identifiable assets	$ 29,150	$ 27,594

SUPPLEMENTAL CONDENSED CONSOL60

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 21,511	$ 22,581	$ 271,739	$ 75,774
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	247,634	214,221
Inventories	48,784	48,085
Prepaid expenses	8,281	5,297
Other receivables	12,197	19,191
Other current assets	7,282	2,310
Intercompany receivables	0	0
Total current assets	345,689	311,685
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	674,192	636,268
Goodwill	217,316	204,731
Intangible assets, net	122,187	118,123
Deferred income taxes	0	0
Investment in subsidiaries	0	0
Long-term intercompany receivables	0	0
Other assets	7,191	5,327
Total assets	1,366,575	1,276,134
Current liabilities:
Accounts payable	130,279	117,070
Accrued liabilities	85,928	65,420
Current maturities of long-term debt	28,753	25,951
Intercompany payables	0	0
Total current liabilities	244,960	208,441
Long-term debt, net of current maturities	721,801	667,385
Other long-term obligations and deferred credits	78,523	93,341
Deferred income taxes	3,493	4,825
Long-term intercompany payables	0	0
Total liabilities	1,048,777	973,992
Total shareholders' equity	296,216	280,451
Non-controlling interest	21,582	21,691
Total equity	317,798	302,142
Total liabilities and equity	1,366,575	1,276,134
Reportable Legal Entities | Parent
Current assets:
Cash and cash equivalents	0	0	0	0
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	0	0
Inventories	0	0
Prepaid expenses	0	0
Other receivables	5,776	16,256
Other current assets	0	0
Intercompany receivables	14,394	14,628
Total current assets	20,170	30,884
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	0	0
Goodwill	0	0
Intangible assets, net	0	0
Deferred income taxes	0	0
Investment in subsidiaries	571,615	544,256
Long-term intercompany receivables	369,555	322,193
Other assets	0	0
Total assets	961,340	897,333
Current liabilities:
Accounts payable	652	17
Accrued liabilities	4,589	6,703
Current maturities of long-term debt	0	0
Intercompany payables	0	0
Total current liabilities	5,241	6,720
Long-term debt, net of current maturities	659,008	608,127
Other long-term obligations and deferred credits	875	2,035
Deferred income taxes	0	0
Long-term intercompany payables	0	0
Total liabilities	665,124	616,882
Total shareholders' equity	296,216	280,451
Non-controlling interest	0	0
Total equity	296,216	280,451
Total liabilities and equity	961,340	897,333
Reportable Legal Entities | Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	12,713	6,970	270,354	75,576
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	239,109	208,669
Inventories	41,496	41,006
Prepaid expenses	7,974	4,723
Other receivables	6,366	2,644
Other current assets	4,437	2,307
Intercompany receivables	0	0
Total current assets	312,095	266,319
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	457,426	416,888
Goodwill	156,637	142,221
Intangible assets, net	119,945	115,570
Deferred income taxes	0	0
Investment in subsidiaries	0	0
Long-term intercompany receivables	0	0
Other assets	6,243	4,384
Total assets	1,052,346	945,382
Current liabilities:
Accounts payable	127,887	115,465
Accrued liabilities	73,719	53,097
Current maturities of long-term debt	28,169	25,284
Intercompany payables	0	0
Total current liabilities	229,775	193,846
Long-term debt, net of current maturities	62,303	58,545
Other long-term obligations and deferred credits	74,763	88,743
Deferred income taxes	4,170	5,499
Long-term intercompany payables	249,217	195,282
Total liabilities	620,228	541,915
Total shareholders' equity	432,118	403,467
Non-controlling interest	0	0
Total equity	432,118	403,467
Total liabilities and equity	1,052,346	945,382
Reportable Legal Entities | Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	8,798	15,611	1,385	198
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	8,525	5,552
Inventories	7,288	7,079
Prepaid expenses	307	574
Other receivables	55	291
Other current assets	2,845	3
Intercompany receivables	0	0
Total current assets	27,818	29,110
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	216,766	219,380
Goodwill	60,679	62,510
Intangible assets, net	2,242	2,553
Deferred income taxes	677	674
Investment in subsidiaries	0	0
Long-term intercompany receivables	0	0
Other assets	948	943
Total assets	309,130	315,170
Current liabilities:
Accounts payable	1,740	1,588
Accrued liabilities	7,620	5,620
Current maturities of long-term debt	584	667
Intercompany payables	14,394	14,628
Total current liabilities	24,338	22,503
Long-term debt, net of current maturities	490	713
Other long-term obligations and deferred credits	2,885	2,563
Deferred income taxes	0	0
Long-term intercompany payables	120,338	126,911
Total liabilities	148,051	152,690
Total shareholders' equity	139,497	140,789
Non-controlling interest	21,582	21,691
Total equity	161,079	162,480
Total liabilities and equity	309,130	315,170
Eliminations and Reclassifications
Current assets:
Cash and cash equivalents	0	0	$ 0	$ 0
Trade accounts receivable, net of allowances of $5,399 as of June 30, 2018 and $5,785 as of December 31, 2017	0	0
Inventories	0	0
Prepaid expenses	0	0
Other receivables	0	0
Other current assets	0	0
Intercompany receivables	(14,394)	(14,628)
Total current assets	(14,394)	(14,628)
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	0	0
Goodwill	0	0
Intangible assets, net	0	0
Deferred income taxes	(677)	(674)
Investment in subsidiaries	(571,615)	(544,256)
Long-term intercompany receivables	(369,555)	(322,193)
Other assets	0	0
Total assets	(956,241)	(881,751)
Current liabilities:
Accounts payable	0	0
Accrued liabilities	0	0
Current maturities of long-term debt	0	0
Intercompany payables	(14,394)	(14,628)
Total current liabilities	(14,394)	(14,628)
Long-term debt, net of current maturities	0	0
Other long-term obligations and deferred credits	0	0
Deferred income taxes	(677)	(674)
Long-term intercompany payables	(369,555)	(322,193)
Total liabilities	(384,626)	(337,495)
Total shareholders' equity	(571,615)	(544,256)
Non-controlling interest	0	0
Total equity	(571,615)	(544,256)
Total liabilities and equity	$ (956,241)	$ (881,751)

SUPPLEMENTAL CONDENSED CONSOL61

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statement of Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Income Statements, Captions [Line Items]
Revenue	$ 404,200,000	$ 340,926,000	$ 731,987,000	$ 640,059,000
Cost of goods sold before depreciation, depletion and amortization	320,238,000	263,574,000	587,470,000	499,333,000
Selling, general and administrative expenses	31,875,000	30,200,000	64,151,000	56,017,000
Depreciation, depletion and amortization	22,142,000	16,350,000	42,717,000	32,209,000
Change in value of contingent consideration	(1,626,000)	720,000	(1,258,000)	1,328,000
Impairment of assets	1,299,000	0	1,299,000	0
Gain on sale of assets, net	(371,000)	(198,000)	(561,000)	(390,000)
Operating income	30,643,000	30,280,000	38,169,000	51,562,000
Interest expense, net	11,514,000	10,368,000	22,823,000	20,510,000
Derivative loss	0	15,766,000	0	13,910,000
Corporate, other products and eliminations other income, net	(1,441,000)	(596,000)	(3,060,000)	(1,304,000)
Income from continuing operations before income taxes	20,570,000	4,742,000	18,406,000	18,446,000
Income tax expense	4,292,000	6,911,000	5,944,000	13,613,000
Income (loss) from continuing operations	16,278,000	(2,169,000)	12,462,000	4,833,000
Loss from discontinued operations, net of taxes	0	(180,000)	0	(302,000)
Net income (loss) before equity in earnings of subsidiaries	16,278,000	(2,349,000)	12,462,000	4,531,000
Equity in earnings of subsidiaries	0	0	0	0
Net income (loss)	16,278,000	(2,349,000)	12,462,000	4,531,000
Less: Net income attributable to non-controlling interest	(13,000)	0	(55,000)	0
Net income (loss) attributable to U.S. Concrete	16,265,000	(2,349,000)	12,407,000	4,531,000
Reportable Legal Entities | Parent
Condensed Income Statements, Captions [Line Items]
Revenue	0	0	0	0
Cost of goods sold before depreciation, depletion and amortization	0	0	0	0
Selling, general and administrative expenses	0	0	0	0
Depreciation, depletion and amortization	0	0	0	0
Change in value of contingent consideration	46,000	139,000	89,000	280,000
Impairment of assets	0		0
Gain on sale of assets, net	0	0	0	0
Operating income	(46,000)	(139,000)	(89,000)	(280,000)
Interest expense, net	10,058,000	9,989,000	19,827,000	19,688,000
Derivative loss		15,766,000		13,910,000
Corporate, other products and eliminations other income, net	811,000	0	811,000	0
Income from continuing operations before income taxes	(10,915,000)	(25,894,000)	(20,727,000)	(33,878,000)
Income tax expense	(3,093,000)	(3,702,000)	(5,776,000)	(7,467,000)
Income (loss) from continuing operations		(22,192,000)		(26,411,000)
Loss from discontinued operations, net of taxes		0		0
Net income (loss) before equity in earnings of subsidiaries	(7,822,000)	(22,192,000)	(14,951,000)	(26,411,000)
Equity in earnings of subsidiaries	24,087,000	19,843,000	27,358,000	30,942,000
Net income (loss)	16,265,000		12,407,000
Less: Net income attributable to non-controlling interest	0		0
Net income (loss) attributable to U.S. Concrete	16,265,000	(2,349,000)	12,407,000	4,531,000
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenue	375,316,000	335,468,000	684,145,000	629,491,000
Cost of goods sold before depreciation, depletion and amortization	298,667,000	259,733,000	549,283,000	491,024,000
Selling, general and administrative expenses	30,494,000	29,457,000	60,096,000	54,655,000
Depreciation, depletion and amortization	18,491,000	15,561,000	35,776,000	30,929,000
Change in value of contingent consideration	(1,672,000)	581,000	(1,347,000)	1,048,000
Impairment of assets	1,299,000		1,299,000
Gain on sale of assets, net	(385,000)	(198,000)	(575,000)	(392,000)
Operating income	28,422,000	30,334,000	39,613,000	52,227,000
Interest expense, net	910,000	379,000	1,801,000	822,000
Derivative loss		0		0
Corporate, other products and eliminations other income, net	(1,531,000)	(622,000)	(2,535,000)	(1,373,000)
Income from continuing operations before income taxes	29,043,000	30,577,000	40,347,000	52,778,000
Income tax expense	7,335,000	10,610,000	11,699,000	21,097,000
Income (loss) from continuing operations		19,967,000		31,681,000
Loss from discontinued operations, net of taxes		(180,000)		(302,000)
Net income (loss) before equity in earnings of subsidiaries	21,708,000	19,787,000	28,648,000	31,379,000
Equity in earnings of subsidiaries	0	0	0	0
Net income (loss)	21,708,000		28,648,000
Less: Net income attributable to non-controlling interest	0		0
Net income (loss) attributable to U.S. Concrete	21,708,000	19,787,000	28,648,000	31,379,000
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenue	28,884,000	5,458,000	47,842,000	10,568,000
Cost of goods sold before depreciation, depletion and amortization	21,571,000	3,841,000	38,187,000	8,309,000
Selling, general and administrative expenses	1,381,000	743,000	4,055,000	1,362,000
Depreciation, depletion and amortization	3,651,000	789,000	6,941,000	1,280,000
Change in value of contingent consideration	0	0	0	0
Impairment of assets	0		0
Gain on sale of assets, net	14,000	0	14,000	2,000
Operating income	2,267,000	85,000	(1,355,000)	(385,000)
Interest expense, net	546,000	0	1,195,000	0
Derivative loss		0		0
Corporate, other products and eliminations other income, net	(721,000)	26,000	(1,336,000)	69,000
Income from continuing operations before income taxes	2,442,000	59,000	(1,214,000)	(454,000)
Income tax expense	50,000	3,000	21,000	(17,000)
Income (loss) from continuing operations		56,000		(437,000)
Loss from discontinued operations, net of taxes		0		0
Net income (loss) before equity in earnings of subsidiaries	2,392,000	56,000	(1,235,000)	(437,000)
Equity in earnings of subsidiaries	0	0	0	0
Net income (loss)	2,392,000		(1,235,000)
Less: Net income attributable to non-controlling interest	(13,000)		(55,000)
Net income (loss) attributable to U.S. Concrete	2,379,000	56,000	(1,290,000)	(437,000)
Eliminations and Reclassifications
Condensed Income Statements, Captions [Line Items]
Revenue	0	0	0	0
Cost of goods sold before depreciation, depletion and amortization	0	0	0	0
Selling, general and administrative expenses	0	0	0	0
Depreciation, depletion and amortization	0	0	0	0
Change in value of contingent consideration	0	0	0	0
Impairment of assets	0		0
Gain on sale of assets, net	0	0	0	0
Operating income	0	0	0	0
Interest expense, net	0	0	0	0
Derivative loss		0		0
Corporate, other products and eliminations other income, net	0	0		0
Income from continuing operations before income taxes	0	0	0	0
Income tax expense	0	0	0	0
Income (loss) from continuing operations		0		0
Loss from discontinued operations, net of taxes		0		0
Net income (loss) before equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of subsidiaries	(24,087,000)	(19,843,000)	(27,358,000)	(30,942,000)
Net income (loss)	(24,087,000)		(27,358,000)
Less: Net income attributable to non-controlling interest	0		0
Net income (loss) attributable to U.S. Concrete	$ (24,087,000)	$ (19,843,000)	$ (27,358,000)	$ (30,942,000)

SUPPLEMENTAL CONDENSED CONSOL62

SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities			$ 47,860	$ 53,155
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	$ (12,462)	$ (7,974)	(20,837)	(18,692)
Payments for acquisitions, net of cash acquired			(61,111)	(32,836)
Proceeds from disposals of property, plant and equipment			1,085	841
Proceeds from disposal of businesses			158	873
Insurance proceeds from property loss claims			2,134	0
Investment in subsidiaries				0
Net cash used in investing activities			(78,571)	(49,814)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings			228,613	0
Repayments of revolver borrowings			(177,213)	0
Proceeds from issuance of debt			0	211,500
Proceeds from exercise of stock options and warrants			78	494
Payments of other long-term obligations			(3,540)	(4,536)
Payments for other financing			(13,709)	(8,778)
Debt issuance costs			0	(3,231)
Other treasury share purchases			(1,869)	(2,825)
Other treasury share purchases			(249)	0
Other proceeds			464	0
Intercompany funding			0	0
Net cash provided by financing activities			32,575	192,624
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS			(98)	0
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			1,766	195,965
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD			22,581	75,774
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	21,511	271,739	21,511	271,739
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	24,347	271,739	24,347	271,739	$ 22,581
Reportable Legal Entities | Parent
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities			(21,669)	20,700
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment			0	0
Payments for acquisitions, net of cash acquired			0	469
Proceeds from disposals of property, plant and equipment			0	0
Proceeds from disposal of businesses			0	0
Insurance proceeds from property loss claims			0
Investment in subsidiaries				(646)
Net cash used in investing activities			0	(177)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings			228,613
Repayments of revolver borrowings			(177,213)
Proceeds from issuance of debt				211,500
Proceeds from exercise of stock options and warrants			78	494
Payments of other long-term obligations			(2,215)	(2,925)
Payments for other financing			0	0
Debt issuance costs				(3,231)
Other treasury share purchases			(1,869)	(2,825)
Other treasury share purchases			0
Other proceeds			0
Intercompany funding			(25,725)	(223,536)
Net cash provided by financing activities			21,669	(20,523)
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS			0
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			0	0
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD			0	0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	0	0	0	0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	0		0
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities			61,128	61,704
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment			(19,432)	(16,612)
Payments for acquisitions, net of cash acquired			(61,111)	(33,305)
Proceeds from disposals of property, plant and equipment			997	841
Proceeds from disposal of businesses			158	873
Insurance proceeds from property loss claims			1,634
Investment in subsidiaries				0
Net cash used in investing activities			(77,754)	(48,203)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings			0
Proceeds from issuance of debt				0
Proceeds from exercise of stock options and warrants			0	0
Payments of other long-term obligations			(1,325)	(1,611)
Payments for other financing			(13,404)	(8,778)
Debt issuance costs				0
Other treasury share purchases			0	0
Other treasury share purchases			0
Other proceeds			464
Intercompany funding			39,470	191,666
Net cash provided by financing activities			25,205	181,277
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS			0
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			8,579	194,778
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD			6,970	75,576
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	12,713	270,354	12,713	270,354
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	15,549		15,549
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities			1,461	2,072
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment			(1,405)	(2,080)
Payments for acquisitions, net of cash acquired			0	0
Proceeds from disposals of property, plant and equipment			88	0
Proceeds from disposal of businesses			0	0
Insurance proceeds from property loss claims			500
Investment in subsidiaries				0
Net cash used in investing activities			(817)	(2,080)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings			0
Proceeds from issuance of debt				0
Proceeds from exercise of stock options and warrants			0	0
Payments of other long-term obligations			0	0
Payments for other financing			(305)	0
Debt issuance costs				0
Other treasury share purchases			0	0
Other treasury share purchases			(249)
Other proceeds			0
Intercompany funding			(6,805)	1,195
Net cash provided by financing activities			(7,359)	1,195
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS			(98)
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			(6,813)	1,187
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD			15,611	198
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	8,798	1,385	8,798	1,385
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	8,798		8,798
Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by (used in) operating activities			6,940	(31,321)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment			0	0
Payments for acquisitions, net of cash acquired			0	0
Proceeds from disposals of property, plant and equipment			0	0
Proceeds from disposal of businesses			0	0
Insurance proceeds from property loss claims			0
Investment in subsidiaries				646
Net cash used in investing activities			0	646
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings			0
Repayments of revolver borrowings			0
Proceeds from issuance of debt				0
Proceeds from exercise of stock options and warrants			0	0
Payments of other long-term obligations			0	0
Payments for other financing			0	0
Debt issuance costs				0
Other treasury share purchases			0	0
Other treasury share purchases			0
Other proceeds			0
Intercompany funding			(6,940)	30,675
Net cash provided by financing activities			(6,940)	30,675
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS			0
NET INCREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			0	0
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD			0	0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	0	$ 0	0	$ 0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	$ 0		$ 0

RESTRICTED CASH (Details)

RESTRICTED CASH (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Restricted Cash [Abstract]
Cash and cash equivalents	$ 21,511	$ 22,581	$ 271,739	$ 75,774
Restricted cash included in other current assets	2,836	0
Cash and cash equivalents	$ 24,347	$ 22,581	$ 271,739

ASSETS AND LIABILITIES HELD F64

ASSETS AND LIABILITIES HELD FOR SALE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Impairment of assets	$ 1,299	$ 0	$ 1,299	$ 0
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	674,192		674,192		$ 636,268
Liabilities assumed in sale	1,200		1,200
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $205,249 as of June 30, 2018 and $178,168 as of December 31, 2017	$ 3,100		$ 3,100