Charah Solutions, Inc. 8.50% Se (CHRB) 10-Q 14 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 14, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Charah Solutions, Inc.
Entity Central Index Key	1,730,346
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		29,082,988

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash	$ 14,998	$ 32,264
Trade accounts receivable	58,364	47,227
Receivable from affiliates	120	38
Costs and estimated earnings in excess of billings (CIE)	30,264	7,959
Inventory	20,902	1,666
Prepaid expenses and other current assets	6,899	4,644
Total current assets	131,547	93,798
Property and equipment:
Plant, machinery and equipment	68,321	42,565
Structural fill site improvements	55,760	55,760
Vehicles	15,670	16,478
Office equipment	712	638
Buildings and leasehold improvements	239	240
Structural fill sites	7,110	7,110
Total property and equipment	147,812	122,791
Less accumulated depreciation and amortization	(38,159)	(22,861)
Property and equipment, net	109,653	99,930
Other assets:
Trade name, net	34,931	34,330
Other intangible assets, net	75	87
Goodwill	76,431	73,468
Other assets	2,030	0
Equity method investments	5,354	5,006
Total assets	431,933	377,651
Current liabilities:
Accounts payable	24,322	15,247
Billings in excess of costs and estimated earnings (BIE)	7,099	15,882
Notes payable, current maturities	8,185	19,996
Accrued payroll and bonuses	17,982	16,036
Asset retirement obligation	1,086	1,072
Purchase option liability, current portion	5,061	5,061
Accrued expenses	13,070	7,959
Other liabilities	0	198
Total current liabilities	76,805	81,451
Long-term liabilities:
Purchase option liability, less current portion	17,653	20,183
Contingent earnout liability	15,000	0
Deferred tax liability	1,919	0
Notes payable, less current maturities	216,588	227,698
Total liabilities	327,965	329,332
Commitments and contingencies (see Note 11)
Stockholders’ and members’ equity
Retained earnings	22,341	18,316
Total stockholders’ and members’ equity	103,082	47,721
Non-controlling interest	886	598
Total equity	103,968	48,319
Total liabilities and equity	431,933	377,651
Additional Paid In Capital
Stockholders’ and members’ equity
Common Stock - Charah Solutions, Inc.—$0.01 par value; 200,000,000 shares authorized, 29,082,988 shares issued and outstanding	291	0
Additional paid in capital - Charah Solutions, Inc.	80,450	0
Members’ interest—Charah, LLC Series A, no par, 200,000,000 members’ interest authorized (104,109,890 issued and outstanding) as of December 31, 2017. Series B, no par, 100,000,000 members’ interest authorized (35,199,063 issued and outstanding) as of December 31, 2017
Stockholders’ and members’ equity
Members' interest	0	19,718
Total equity	0	19,718
Members’ interest—Allied Power Management, LLC, Series A, no par, 200,000,000 members’ interest authorized (7,210,555 issued and outstanding) as of December 31, 2017. Series B, no par, 100,000,000 members’ interest authorized (2,437,855 issued and outstanding) as of December 31, 2017
Stockholders’ and members’ equity
Members' interest	0	9,687
Total equity	0	9,687
Customer relationships
Other assets:
Finite lived intangible assets, net	68,513	71,032
Technology
Other assets:
Finite lived intangible assets, net	2,080	0
Non-compete and other agreements
Other assets:
Finite lived intangible assets, net	$ 1,319	$ 0

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)	Jun. 30, 2018$ / sharesshares	Dec. 31, 2017$ / sharesshares
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0
Common stock, shares authorized (in shares)	200,000,000	0
Common stock, shares issued (in shares)	29,082,988	0
Common stock, shares outstanding (in shares)	29,082,988	0
Charah, LLC Members’ Interest | Series A
Common unit, no par value (in dollars per unit) | $ / shares	0	0
Common unit, authorized (in units)	0	200,000,000
Common unit, issued (in units)	0	104,109,890
Common unit, outstanding (in units)	0	104,109,890
Charah, LLC Members’ Interest | Series B
Common unit, no par value (in dollars per unit) | $ / shares	0	0
Common unit, authorized (in units)	0	100,000,000,000
Common unit, issued (in units)	0	35,199,063,000
Common unit, outstanding (in units)	0	35,199,063,000
Allied Power Management, LLC | Series A
Common unit, no par value (in dollars per unit) | $ / shares	0	0
Common unit, authorized (in units)	0	200,000,000
Common unit, issued (in units)	0	7,210,555
Common unit, outstanding (in units)	0	7,210,555
Allied Power Management, LLC | Series B
Common unit, no par value (in dollars per unit) | $ / shares	0	0
Common unit, authorized (in units)	0	100,000,000
Common unit, issued (in units)	0	2,437,855
Common unit, outstanding (in units)	0	2,437,855

Condensed Consolidated & Combin

Condensed Consolidated & Combined Statements of Income (Unaudited) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue		$ 195,723	$ 74,404	$ 351,252	$ 133,369
Cost of sales		165,174	53,910	301,605	97,146
Gross profit		30,549	20,494	49,647	36,223
General and administrative expenses		18,937	7,463	33,319	13,979
Operating income (loss)		11,612	13,031	16,328	22,244
Interest expense		(5,543)	(1,728)	(9,674)	(2,783)
Income from equity method investment		699	270	1,286	477
Income (loss) before income taxes		6,768	11,573	7,940	19,938
Income tax expense		2,906	0	2,906	0
Net income (loss)		3,862	11,573	5,034	19,938
Less income attributable to non-controlling interest		642	802	1,009	1,072
Net income (loss) attributable to Charah Solutions, Inc.		$ 3,220	$ 10,771	$ 4,025	$ 18,866
Basic earnings (losses) per share (in dollars per share)		$ 0.13	$ 0.45	$ 0.17	$ 0.80
Diluted earnings (losses) per share (in dollars per share)		$ 0.13	$ 0.44	$ 0.16	$ 0.77
Pro forma net income (loss) information (see Note 1):
Pro forma net income (loss) attributable to Charah Solutions, Inc.		$ 3,381	$ 10,595	$ 4,811	$ 19,096
Predecessor
Revenue	$ 9,130
Cost of sales	7,301
Gross profit	1,829
General and administrative expenses	3,170
Operating income (loss)	(1,341)
Interest expense	(4,181)
Income from equity method investment	48
Income (loss) before income taxes	(5,474)
Income tax expense	0
Net income (loss)	(5,474)
Less income attributable to non-controlling interest	54
Net income (loss) attributable to Charah Solutions, Inc.	(5,528)
Pro forma net income (loss) information (see Note 1):
Pro forma net income (loss) attributable to Charah Solutions, Inc.	(5,447)
Pro Forma
Income tax expense	(2,101)	1,517	4,093	1,720	7,169
Pro forma net income (loss) information (see Note 1):
Net income (loss) attributable to Charah Solutions, Inc. before provision for income taxes	(5,528)	6,126	10,771	6,931	18,866
Pro forma net income (loss) attributable to Charah Solutions, Inc.	$ (3,427)	$ 4,609	$ 6,678	$ 5,211	$ 11,697

Condensed Consolidated & Combi5

Condensed Consolidated & Combined Statements of Stockholders' and Members' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Parent	Non-Controlling Interest	Series A	Series AParent	Series B	Series BParent	Series C	Series CParent	Charah, LLC Members’ Interest	Charah, LLC Members’ InterestCommon Stock	Charah, LLC Members’ InterestRetained Earnings	Charah, LLC Members’ InterestParent	Charah, LLC Members’ InterestNon-voting SharesCommon Stock	Charah, LLC Members’ InterestNon-voting SharesAdditional Paid In Capital	Charah, LLC Members’ InterestSeries A	Charah, LLC Members’ InterestSeries B	Charah, LLC Members’ InterestSeries C	Allied Power Management, LLC Members’ Interest
Balance beginning of period, Members' Equity (Predecessor) at Dec. 31, 2016	$ 21,346					$ 686								$ 24	$ 20,366	$ 20,660	$ 216	$ 54
Balance beginning of period (shares) (Predecessor) at Dec. 31, 2016														18,750			168,750
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) | Predecessor	(5,474)					54									(5,528)	(5,528)
Distributions | Predecessor	(20,660)					0									(20,660)	(20,660)
Balance end of period, Members' Equity (Predecessor) at Jan. 12, 2017	(4,788)					740								$ 24	$ (5,822)	$ (5,528)	$ 216	$ 54
Balance end of period, Members' Equity at Jan. 12, 2017	740			$ 0	$ 0	740							$ 0									$ 0
Balance end of period (shares) (Predecessor) at Jan. 12, 2017														18,750			168,750
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	19,938			18,866	18,866	1,072
Issuance of original member interests							$ 116,418	$ 116,418	$ 36,643	$ 36,643									$ 116,418	$ 36,643
Distributions	(16,338)				(15,498)	(840)							(15,498)
Share based compensation expense											$ 141	$ 141									$ 141
Balance end of period, Members' Equity at Jun. 30, 2017	157,542			18,866	156,570	972							137,704									0
Balance beginning of period, Stockholders' Equity at Dec. 31, 2017	$ 48,319	$ 0	$ 0	18,316	47,721	598							19,718									9,687
Balance beginning of period (shares) at Dec. 31, 2017	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 5,034			4,025	4,025	1,009
Share based compensation expense	214				214								214
Distributions	(1,407)				(686)	(721)							(686)
Conversion from members' interest to common stock (in shares)		23,436,398
Conversion from members' interest to common stock	0	$ 234	28,699										(19,246)									(9,687)
Issuance of shares (in shares)		5,294,117
Issuance of shares	59,241	$ 53	59,188		59,241
Share based common stock issued (in shares)		372,169
Share based common stock issued	0	$ 4	(4)
Shares repurchased (in shares)		(19,696)
Shares repurchased	0	$ 0	0		0
Share based compensation expense	1,189		1,189		1,189
Deferred offering costs	(8,622)		(8,622)		(8,622)
Balance end of period, Stockholders' Equity at Jun. 30, 2018	$ 103,968	$ 291	$ 80,450	$ 22,341	$ 103,082	$ 886							$ 0									$ 0
Balance end of period (shares) at Jun. 30, 2018	29,082,988	29,082,988

Condendsed Consolidated & Combi

Condendsed Consolidated & Combined Statements of Cahs Flow (Unaudited) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss)		$ 3,862	$ 11,573	$ 5,034	$ 19,938
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization				17,135	12,799
Amortization of debt issuance costs				784	305
Deferred income tax expense				1,919	0
Loss on sale of assets				582	169
Income from equity method investment		(699)	(270)	(1,286)	(477)
Distributions received from equity investment		687	287	938	651
Non-cash share-based compensation				1,403	141
Payment related to deferred stock plan				0	(18,888)
Gain on interest rate swap				(2,228)	0
Increase (decrease) in cash due to changes in:
Trade accounts receivable				(5,289)	9,494
Receivable from affiliates				(82)	(474)
Costs and estimated earnings in excess of billing				(22,305)	(6,454)
Inventory				(825)	(390)
Prepaid expenses and other current assets				(2,126)	(1,604)
Accounts payable				8,587	(7,420)
Billings in excess of costs and estimated earnings				(8,783)	3,007
Accrued payroll and bonuses				1,946	(518)
Asset retirement obligation				14	135
Accrued expenses				2,396	3,940
Net cash (used in) provided by operating activities				(2,186)	14,354
Cash flows from investing activities:
Proceeds from the sale of equipment				1,102	314
Purchases of property and equipment				(8,233)	(4,438)
Payments for business acquisitions, net of cash received				(19,983)	0
Purchase of intangible assets				(31)	0
Decrease (increase) in restricted cash				0	2,753
Net cash used in investing activities				(27,145)	(1,371)
Cash flows from financing activities:
Net (payments) proceeds on line of credit				0	(43,801)
Proceeds from long-term debt				8,400	145,508
Principal payments on long-term debt				(45,547)	(122,299)
Payments of offering costs				(8,622)	0
Proceeds from note payable to related party, net				0	25,230
Issuance of common stock				59,241	0
Distributions to non-controlling interest				(721)	(840)
Distributions to members				(686)	(15,498)
Net cash provided by (used in) financing activities				12,065	(11,700)
Net (decrease) increase in cash				(17,266)	1,283
Cash, beginning of period				32,264	1,046
Cash, end of period	$ 1,046	$ 14,998	$ 2,329	14,998	2,329
Supplemental disclosures of cash flow information:
Cash paid during the year for interest				11,163	3,167
Non-cash investing and financing transactions:
Purchase of equipment with seller provided financing				$ 13,441
Predecessor
Cash flows from operating activities:
Net income (loss)	(5,474)
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	763
Amortization of debt issuance costs	0
Deferred income tax expense	0
Loss on sale of assets	123
Income from equity method investment	(48)
Distributions received from equity investment	0
Non-cash share-based compensation	0
Payment related to deferred stock plan	0
Gain on interest rate swap	0
Increase (decrease) in cash due to changes in:
Trade accounts receivable	(3,977)
Receivable from affiliates	0
Costs and estimated earnings in excess of billing	2,185
Inventory	278
Prepaid expenses and other current assets	71
Accounts payable	4,380
Billings in excess of costs and estimated earnings	6
Accrued payroll and bonuses	(318)
Asset retirement obligation	0
Accrued expenses	(2,407)
Net cash (used in) provided by operating activities	(4,418)
Cash flows from investing activities:
Proceeds from the sale of equipment	0
Purchases of property and equipment	0
Payments for business acquisitions, net of cash received	0
Purchase of intangible assets	0
Decrease (increase) in restricted cash	0
Net cash used in investing activities	0
Cash flows from financing activities:
Net (payments) proceeds on line of credit	4,605
Proceeds from long-term debt	298
Principal payments on long-term debt	(440)
Payments of offering costs	0
Proceeds from note payable to related party, net	0
Issuance of common stock	0
Distributions to non-controlling interest	0
Distributions to members	0
Net cash provided by (used in) financing activities	4,463
Net (decrease) increase in cash	45
Cash, beginning of period	1,001				$ 1,046
Cash, end of period	1,046
Supplemental disclosures of cash flow information:
Cash paid during the year for interest	104
Non-cash investing and financing transactions:
Loan to related party distributed	7,865
Receivables from affiliates distributed	883
Assets and liabilities related to un-acquired business distributed	$ 11,912
Charah Management LLC | Bernhard Capital Partners Management, LP (BCP)
Non-cash investing and financing transactions:
Equity method investment, ownership percentage	76.00%

Nature of Business and Basis of

Nature of Business and Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Basis of Presentation	Nature of Business and Basis of Presentation Organization Charah Solutions, Inc. (“Charah Solutions” or the “Company”) was formed as a Delaware corporation in January 2018 and did not conduct any material business operations prior to the transactions described below other than certain activities related to the initial public offering (the “IPO”). The Company completed its IPO on June 18, 2018. Charah Solutions is a holding company, the sole material assets of which consist of membership interests in Charah Management LLC, a Delaware limited liability company (“Charah Management”), and Allied Power Holdings, LLC, a Delaware limited liability company (“Allied Power Holdings”). Through the Company’s ownership of Charah Management and Allied Power Holdings, the Company owns the outstanding equity interests in Charah, LLC, a Delaware limited liability company (“Charah”), and Allied Power Management, LLC, a Delaware limited liability company (“Allied”), the subsidiaries through which Charah Solutions operates its businesses. The historical financial data presented herein as of June 30, 2018 and for periods after the June 18, 2018 corporate reorganization is that of Charah and Allied on a consolidated basis, and on a combined basis for periods prior to the June 18, 2018 corporate reorganization described below. Allied was formed in May 2017 and did not commence operations until July 2017. Corporate Reorganization On June 18, 2018, pursuant to the terms of the reorganization transactions completed in connection with the IPO, (a) (i) Charah Holdings LP, a Delaware limited partnership (“Charah Holdings”) owned by Bernhard Capital Partners Management, LP and certain related affiliates (“BCP”), contributed all of its interests in Charah Management and Allied Power Holdings to the Company in exchange for 17,514,745 shares of common stock, (ii) CEP Holdings, Inc., a Delaware corporation owned by Charles Price and certain affiliates (“CEP Holdings”), contributed all of its interests in Charah Management and Allied Power Holdings to the Company in exchange for 4,605,465 shares of common stock, (iii) Charah Management Holdings LLC, a Delaware limited liability company (“Charah Management Holdings”), contributed all of its interests in Charah Management and Allied Power Holdings to the Company in exchange for 907,113 shares of common stock and (iv) Allied Management Holdings, LLC, a Delaware limited liability company (“Allied Management Holdings”), contributed all of its interests in Charah Management and Allied Power Holdings to the Company in exchange for 409,075 shares of common stock, (b) each of Charah Management Holdings and Allied Management Holdings distributed the shares of common stock received by them pursuant to clause (a) to their respective members in accordance with the respective terms of their limited liability company agreements and (c) Charah Holdings distributed a portion of the shares of common stock it received in clause (a) above to certain direct and indirect blocker entities which ultimately merged into the Company, with the Company surviving, and affiliates of BCP received shares of common stock as consideration in the mergers. Description of Business Operations The Company provides mission-critical environmental and maintenance services to the power generation industry, enabling our customers to address challenges related to the remediation of ash ponds and landfills at open and closed power plant sites while continuously operating and providing necessary electric power to communities nationwide. Services offered include a suite of coal ash management and recycling, environmental remediation and outage maintenance services. The Company also designs and implements solutions for complex environmental projects (such as coal ash pond closures) and facilitates coal ash recycling through byproduct sales and other beneficial use services. The Company has corporate offices in Kentucky, North Carolina, and Louisiana, and principally operates in the eastern and mid central United States. The condensed consolidated and combined financial statements include the assets, liabilities, members’ equity, and results of operations of the Company and its consolidated subsidiaries. References to “Predecessor” in the financial statements refer to Charah. Charah is the predecessor for accounting purposes of Charah Solutions, which as described above, was formed in connection with the IPO. Under the Jumpstart Our Business Startups Act (the "JOBS Act"), the Company meets the definition of an “emerging growth company,” which allows the Company to have an extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. The Company intends to take advantage of all of the reduced reporting requirements and exemptions, including the longer phase-in periods for the adoption of new or revised financial accounting standards under Section 107 of the JOBS Act until the Company is no longer an emerging growth company. In April 2017, the SEC adopted new rules that included an inflation-adjusted threshold in the definition of an emerging growth company. Under the new inflation-adjusted threshold, we would cease to be an emerging growth company on the last day of the fiscal year in which our annual gross revenues exceed $1.07 billion. This is an increase of $70 million from the previous $1 billion threshold. Basis for Presentation The Company’s fiscal year ends December 31. The accompanying unaudited condensed consolidated and combined financial statements include the accounts of the Company and its consolidated subsidiaries. Intercompany transactions and balances have been eliminated in consolidation. The accompanying unaudited condensed consolidated and combined financial statements have been prepared in accordance with rules and regulations of the Securities and Exchange Commission ("SEC") for quarterly reports on Form 10-Q. In the opinion of management, all adjustments considered necessary for a fair presentation have been included, which consist of normal recurring adjustments. Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted. These unaudited condensed consolidated and combined financial statements should be read in conjunction with the annual audited combined financial statements and notes included in our final prospectus filed on June 15, 2018. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606) , requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The core principle of ASU 2014-09 is to recognize revenues when a customer obtains control of a good or service, in an amount that reflects the consideration to which an entity is expected to be entitled for those goods or services. The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective and permits the use of either a full retrospective or retrospective with cumulative effect transition method. In August 2015, the FASB issued ASU 2015-14, which deferred the effective date of ASU 2014-09 by one year. The updated standard will be effective for the year ending December 31, 2019, with early adoption permitted. The Company has not yet selected a transition method and is currently evaluating the effect that the new standard will have on the financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , requiring all leases to be recognized on the balance sheet as a right-of-use asset and a lease liability, unless the lease is a short-term lease (generally a lease with a term of twelve months or less). At the commencement date of the lease, the Company will recognize: 1) a lease liability for the Company’s obligation to make payments under the lease agreement, measured on a discounted basis; and 2) a right-of-use asset that represents the Company's right to use, or control the use of, the specified asset for the lease term. Upon adopting the ASU, the Company will be required to recognize and measure their leases at the beginning of the earliest period presented using a modified retrospective approach. ASU 2016-02 will be effective for the Company for the year ending December 31, 2020, with early adoption permitted. The Company is currently evaluating the effect that the new standard will have on the consolidated and combined financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments . This update addresses specific cash flow issues, including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and proceeds from the settlement of insurance claims. The guidance is effective for fiscal years beginning after December 15, 2018. The Company is currently evaluating the effect that the new standard will have on the consolidated and combined financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) . This ASU requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Upon adopting the ASU, amounts generally described as restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 will be effective for the Company beginning after December 15, 2018 with regard to fiscal years and beginning after December 15, 2019 with regard to interim periods within fiscal years, with early adoption permitted. The Company is currently evaluating the effect that the new standard will have on the condensed consolidated and combined financial statements. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business , which provides guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 requires entities to use a screen test to determine when an integrated set of assets and activities is not a business or if the integrated set of assets and activities needs to be further evaluated against the framework. The Company adopted the new standard effective January 1, 2018 on a prospective basis. The new standard did not have a material impact on our condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . The ASU simplifies the measurement of goodwill impairment by eliminating the requirement that an entity compute the implied fair value of goodwill based on the fair values of its assets and liabilities to measure impairment. Instead, goodwill impairment will be measured as the difference between the fair value of the reporting unit and the carrying value of the reporting unit. The ASU also clarifies the treatment of the income tax effect of tax deductible goodwill when measuring goodwill impairment loss. The Company will be required to adopt ASU 2017-04 as of January 1, 2020. ASU 2017-04 must be applied prospectively with early adoption permitted. The Company is currently evaluating the impact of the adoption of this guidance on its consolidated and combined financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting , to provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in ASC 718. The Company adopted the new standard effective January 1, 2018 on a prospective basis. The new standard did not have a material impact on our condensed consolidated and combined financial statements. Unaudited Pro Forma Income Information The unaudited pro forma income information gives effect to the corporate reorganization that occurred in connection with the closing of the IPO and the resulting legal entity of Charah Solutions, which is incorporated as a “C” Corporation. Prior to the corporate reorganization, the holding companies for Charah and Allied were limited liability companies and generally not subject to income taxes. The pro forma net income, therefore, includes an adjustment for income tax expense as if the holding companies for Charah and Allied had been “C” Corporations for all periods presented at an assumed combined federal, state and local effective income tax rate of 38% for the year ended December 31, 2017 and 25% for the periods from January 1, 2018 and April 1, 2018, through June 17, 2018, plus the actual tax expense for the period from June 18, 2018 through June 30, 2018. These rates approximate the calculated statutory tax rate for each period. The tax rate in the preceding sentence for the year ended December 31, 2017 does not reflect the impact of U.S. tax reform, which reduces the federal U.S. statutory tax rate from 35% to 21% effective in 2018. The tax rate mentioned for the three and six months ended June 30, 2018 reflects the impact of U.S. tax reform.

Business Combination

Business Combination	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
Business Combination	Business Combination On January 13, 2017, Charah Management completed a transaction with BCP, a previously unrelated third party pursuant to which BCP acquired a 76% equity position in Charah Management. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations . The purchase price was allocated to the assets acquired and liabilities assumed based on the estimated fair value at the date of acquisition, as summarized below. By the application of “push-down” accounting, Charah’s assets and liabilities were accordingly adjusted to fair value. Net working capital $ 26,704 Net operating assets/liabilities 9,679 Property, plant and equipment 107,876 Rail easement 110 Purchase option liability (29,883 ) Trade name intangible assets 34,330 Customer relationship intangible assets 78,200 Goodwill 73,468 Total purchase price $ 300,484 On March 30, 2018, Charah Management completed a transaction with SCB Materials International, Inc. and affiliated entities ("SCB"), a previously unrelated third party, pursuant to which Charah acquired certain assets and liabilities of SCB for a purchase price of $35,000 with $20,000 paid at closing, and $15,000 to be paid over time in conjunction with certain performance metrics. The contract also contained various mechanisms for a working capital true-up, which the Company is currently reviewing. The Company does not believe that any potential changes coming from this review will have a material impact on the consolidated and combined financial statements. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC 805, Business Combinations . As of June 30, 2018, the allocation of purchase price for the acquisition is preliminary (as summarized below); fair value estimates of identifiable assets acquired and liabilities assumed are based on management’s estimates, judgments and assumptions and are subject to change until finalized. Goodwill will be allocated to the Environmental Solutions segment. The total amount of goodwill that is expected to be deductible for tax purposes is $4,143 . The allocation of the purchase price was adjusted in the quarter ended June 30, 2018, resulting in an increase of $562 to net working capital acquired, excluding cash and an increase of $807 to the fair value of property, plant and equipment. The fair value of intangible assets was reduced by $14 for trade name, $286 for customer relationships, $75 for non-compete and other agreements, and $815 for other intangible assets. The equity method investment was considered to have no fair value, resulting in a reduction of $611 (see also Note 3). Goodwill increased by $432 . The adjustments to the allocation of the purchase price increased depreciation expense by $21 and decreased amortization expense by $29 for the quarter ended June 30, 2018. Cash acquired $ 17 Net working capital, excluding cash 21,185 Property, plant and equipment 5,300 Trade name intangible assets 633 Customer relationship intangible assets 1,427 Technology 2,102 Non-compete and other agreements 1,373 Goodwill 2,963 Total purchase price $ 35,000 No revenue or earnings from the acquired business described above is included in the Statements of Income for the 2017 periods. The actual revenue from the acquired business included in the Statements of Income for the three and six months ended June 30, 2018 was approximately $16,573 for both periods. The actual earnings from the acquired business included in the Statements of Income for the three and six months ended June 30, 2018 was approximately $954 for both periods. The following unaudited information presents the pro forma consolidated revenue and net income for the periods indicated as if the acquisition had been included in the consolidated results of operations beginning January 1, 2017. Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Pro forma revenue $ 195,723 $ 92,306 $ 368,075 $ 167,005 $ 11,158 Pro forma net income (loss) attributable to Charah Solutions, Inc. 3,381 10,595 4,811 19,096 (5,447 ) The above unaudited pro forma results have been calculated by combining the historical results of the Company and the acquired business as if the acquisition had occurred as of the beginning of the fiscal year prior to the acquisition date, and then adjusting the income tax provisions as if they had been calculated on the resulting, combined results. The pro forma results include estimates for additional depreciation related to the fair value of property, plant and equipment and intangible asset amortization and therefore will change when the final asset values and useful lives have been determined. The pro forma results reflect elimination of $573 of direct acquisition costs that were incurred in the six months ended June 30, 2018 (since for purposes of the pro forma presentation they have been reflected in 2017 instead of in 2018). For all periods presented, historical depreciation and amortization expense of the acquired business was adjusted to reflect the acquisition date fair value amounts of the related tangible and intangible assets. No other material pro forma adjustments were deemed necessary, either to conform the acquisition to the Company’s accounting policies or for any other situation. The pro forma information is not necessarily indicative of the results that would have been achieved had the transactions occurred on the date indicated or that may be achieved in the future.

Equity Method Investments

Equity Method Investments	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments Charah has an investment in a company that provides ash management and remarketing services to the electric utility industry. Charah accounts for its investment under the equity method of accounting because Charah has significant influence over the financial and operating policies of the company. Charah had a receivable due from the equity method investment of $126 and $61 at June 30, 2018 and December 31, 2017 , respectively. Summarized balance sheet information of our equity method investment entity as of: Balance Sheet Data June 30, December 31, Current assets $ 2,784 $ 1,946 Noncurrent assets 764 764 Total assets $ 3,548 $ 2,710 Current liabilities 432 298 Equity of Charah 5,354 5,006 Equity of joint venture partner (2,238 ) (2,594 ) Total liabilities and members' equity $ 3,548 $ 2,710 Summarized financial performance of our equity method investment entity is as follows: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1 2017, through January 12, 2017 Operating Data Revenues $ 2,664 $ 2,243 $ 5,029 $ 3,771 $ 300 Net income $ 1,397 $ 540 $ 2,572 $ 953 $ 96 The Company’s share of net income $ 699 $ 270 $ 1,286 $ 477 $ 48 The following table reflects our proportional ownership activity in our investment account: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1 2017, through January 12, 2017 Opening balance $ 5,342 $ 5,132 $ 5,006 $ 5,289 $ 5,241 Distributions (687 ) (287 ) (938 ) (651 ) — Share of net income 699 270 1,286 477 48 Closing balance $ 5,354 $ 5,115 $ 5,354 $ 5,115 $ 5,289

Intangible Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets The Company’s intangible assets consist of the following as: June 30, 2018 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 11,078 $ 67,122 Other - Rail easement 110 35 75 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 186,108 11,113 174,995 Other - Patents acquired (Note 2) 2,133 53 2,080 Non-compete and other agreements acquired (Note 2) 1,373 54 1,319 Customer relationships acquired (Note 2) 1,427 36 1,391 Trade name acquired (Note 2) 633 32 601 Goodwill acquired (Note 2) 2,963 — 2,963 Closing balance $ 194,637 $ 11,288 $ 183,349 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 7,168 $ 71,032 Rail easement 110 23 87 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 Closing balance $ 186,108 $ 7,191 $ 178,917 Definite Lived Intangible Assets As of June 30, 2018 , and December 31, 2017 , definite lived intangible assets include customer relationships, patents, non-compete and licensing agreements, trade name, and a rail easement. These assets are amortized on a straight-line basis over their estimated useful lives as shown in the table below. Amortization expense was $2,136 , $1,961 , $4,097 , $3,269 and $0 during the three months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the six months ended June 30, 2018 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor) and the period from January 1, 2017 through January 12, 2017 (Predecessor), respectively. Definite Lived Intangible Useful Life Customer relationships 10 years Patents 10 years Non-compete agreement 2 years Licensing agreements 15 years Trade name 5 years Rail easement 4.5 years Goodwill and Indefinite Lived Intangible Assets Goodwill represents the excess of the cost of an acquisition price over the fair value of acquired net assets, and such amounts are reported separately as goodwill on our condensed consolidated and combined balance sheets. Indefinite lived intangible assets are not amortized, but instead are tested for impairment annually or on an interim basis if events or circumstances indicate that the fair value of the asset has decreased below its carrying value. We perform our impairment test effective October 31st of each year. Each quarter we evaluate if there are any indicators of impairment, and we determined there were no indicators of impairment at June 30, 2018 and 2017 .

Credit Agreement

Credit Agreement	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Credit Agreement	Credit Agreement The Company has a credit agreement with a bank providing for a revolving credit facility (the "Credit Facility") with a principal amount of up to $45,000 . The interest rates per annum applicable to the loans under the Credit Facility are based on a fluctuating rate of interest measured by reference to, at the Company's election, either (1) an adjusted LIBOR plus a 2.00% borrowing margin, or (2) an alternative base rate plus a 1.00% borrowing margin. Customary fees are payable in respect of the Credit Facility and include (1) commitment fees in an annual amount equal to 0.50% of the daily unused portions of the Credit Facility, and (2) a 2.00% fee on outstanding letters of credit. The Credit Facility has a maturity date of October 25, 2022. There are no amounts drawn on the revolving credit facility as of June 30, 2018 and December 31, 2017 , respectively, and $12,500 in letters of credit outstanding as of June 30, 2018. Notes Payable The following table summarizes the major components of debt at each balance sheet date and provides maturities and interest rate ranges for each major category as of June 30, 2018 : June 30, December 31, 2017 Various equipment notes entered into in November 2017, payable in monthly installments ranging from $5 to $24 including interest at 5.2%, maturing in December 2022 through December 2023. The notes are secured by equipment with a net book value of $4,658 as of June 30, 2018 (Successor). $ 5,427 $ 5,910 Various equipment notes entered into in 2018, payable in monthly installments ranging from $6 to $38 including interest ranging from 5.90% to 6.80%, maturing in March 2023 through May 2025. The notes are secured by equipment with a net book value of $12,305 as of June 30, 2018 (Successor). 13,167 — In June 2018, the Company entered into a $12,000 convertible non-revolving credit note with a bank. The credit note will convert to a term loan on April 10, 2019, with a maturity date of April 10, 2024. Interest on borrowings prior to the conversion date is calculated using a floating rate equal to 2% in excess of the London Inter-Bank Offered Rate (LIBOR). At the conversion date, interest can be either calculated based on the aforementioned rate or at a fixed rate equal to 2% in excess of the 5-year Swap Rate in effect at the conversion date, based on the Company's preference. There was $3,424 drawn against the credit note as of June 30, 2018 (Successor). 3,424 — In December 2017, Charah entered into a $10,000 equipment line with a bank, secured by all equipment purchased with the proceeds of the loan. Interest is calculated on any outstanding amounts using a fixed rate of 4.5%. The equipment line converts to a term loan in September 2018, with a maturity date of June 22, 2023. There was $8,118 drawn against the equipment line as of June 30, 2018 (Successor). 8,118 3,244 A credit agreement with a bank, entered into during October 2017, providing for a senior secured term loan B facility with an initial commitment of $250,000 (the Term Loan). The interest rates per annum applicable to the loans under the Term Loan are based on a fluctuating rate of interest measured by reference to, at the Company's election, either (1) LIBOR plus a 6.25% borrowing margin, or (2) an alternative base rate plus a 5.25% borrowing margin. The principal amount of the Term Loan will amortize at a rate of 7.5% per annum with all remaining outstanding amounts under the Term Loan due on the Term Loan maturity date. A portion of the IPO proceeds was used to prepay scheduled principal payments which would otherwise have been required through June 2020. The Term Loan has a scheduled maturity date of October 25, 2024. The Term Loan is collateralized by substantially all the assets of the Company. 205,313 250,000 Total 235,449 259,154 Less debt issuance costs (10,676 ) (11,460 ) 224,773 247,694 Less current maturities (8,185 ) (19,996 ) Notes payable due after one year $ 216,588 $ 227,698

Notes Payable

Notes Payable	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Notes Payable	Credit Agreement The Company has a credit agreement with a bank providing for a revolving credit facility (the "Credit Facility") with a principal amount of up to $45,000 . The interest rates per annum applicable to the loans under the Credit Facility are based on a fluctuating rate of interest measured by reference to, at the Company's election, either (1) an adjusted LIBOR plus a 2.00% borrowing margin, or (2) an alternative base rate plus a 1.00% borrowing margin. Customary fees are payable in respect of the Credit Facility and include (1) commitment fees in an annual amount equal to 0.50% of the daily unused portions of the Credit Facility, and (2) a 2.00% fee on outstanding letters of credit. The Credit Facility has a maturity date of October 25, 2022. There are no amounts drawn on the revolving credit facility as of June 30, 2018 and December 31, 2017 , respectively, and $12,500 in letters of credit outstanding as of June 30, 2018. Notes Payable The following table summarizes the major components of debt at each balance sheet date and provides maturities and interest rate ranges for each major category as of June 30, 2018 : June 30, December 31, 2017 Various equipment notes entered into in November 2017, payable in monthly installments ranging from $5 to $24 including interest at 5.2%, maturing in December 2022 through December 2023. The notes are secured by equipment with a net book value of $4,658 as of June 30, 2018 (Successor). $ 5,427 $ 5,910 Various equipment notes entered into in 2018, payable in monthly installments ranging from $6 to $38 including interest ranging from 5.90% to 6.80%, maturing in March 2023 through May 2025. The notes are secured by equipment with a net book value of $12,305 as of June 30, 2018 (Successor). 13,167 — In June 2018, the Company entered into a $12,000 convertible non-revolving credit note with a bank. The credit note will convert to a term loan on April 10, 2019, with a maturity date of April 10, 2024. Interest on borrowings prior to the conversion date is calculated using a floating rate equal to 2% in excess of the London Inter-Bank Offered Rate (LIBOR). At the conversion date, interest can be either calculated based on the aforementioned rate or at a fixed rate equal to 2% in excess of the 5-year Swap Rate in effect at the conversion date, based on the Company's preference. There was $3,424 drawn against the credit note as of June 30, 2018 (Successor). 3,424 — In December 2017, Charah entered into a $10,000 equipment line with a bank, secured by all equipment purchased with the proceeds of the loan. Interest is calculated on any outstanding amounts using a fixed rate of 4.5%. The equipment line converts to a term loan in September 2018, with a maturity date of June 22, 2023. There was $8,118 drawn against the equipment line as of June 30, 2018 (Successor). 8,118 3,244 A credit agreement with a bank, entered into during October 2017, providing for a senior secured term loan B facility with an initial commitment of $250,000 (the Term Loan). The interest rates per annum applicable to the loans under the Term Loan are based on a fluctuating rate of interest measured by reference to, at the Company's election, either (1) LIBOR plus a 6.25% borrowing margin, or (2) an alternative base rate plus a 5.25% borrowing margin. The principal amount of the Term Loan will amortize at a rate of 7.5% per annum with all remaining outstanding amounts under the Term Loan due on the Term Loan maturity date. A portion of the IPO proceeds was used to prepay scheduled principal payments which would otherwise have been required through June 2020. The Term Loan has a scheduled maturity date of October 25, 2024. The Term Loan is collateralized by substantially all the assets of the Company. 205,313 250,000 Total 235,449 259,154 Less debt issuance costs (10,676 ) (11,460 ) 224,773 247,694 Less current maturities (8,185 ) (19,996 ) Notes payable due after one year $ 216,588 $ 227,698

Interest Rate Swap

Interest Rate Swap	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Swap	Interest Rate Swap In order to manage interest rate risk in a cost-efficient manner, the Company entered into an interest rate swap during 2017 whereby the Company agreed to exchange with the counterparty, at specified intervals, the difference between fixed and variable interest amounts calculated by reference to a notional amount. The interest rate swap is not designated for hedge accounting. The change in fair values of the interest rate swap are immediately recognized in earnings, within interest expense. As of both June 30, 2018 and December 31, 2017 , the notional amount of the interest rate swap was $150,000 . A fair value asset of $2,030 was recorded in the condensed consolidated and balance sheet within other assets, as of June 30, 2018 (Successor) and a fair value liability of $198 was recorded in the balance sheet within other liabilities as of December 31, 2017 (Successor). The total amount of gain subtracted from interest expense for the three months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the six months ended June 30, 2018 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor), and the period from January 1, 2017 through January 12, 2017 (Predecessor) was $604 , $0 , $2,228 , $0 and $0 respectively.

Costs and Estimated Earnings on

Costs and Estimated Earnings on Uncompleted Contracts	6 Months Ended
	Jun. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Costs and Estimated Earnings on Uncompleted Contracts	Costs and Estimated Earnings on Uncompleted Contracts Costs and estimated earnings on uncompleted contracts as of: June 30, December 31, Costs incurred on uncompleted contracts $ 197,033 $ 151,963 Estimated earnings 70,412 53,356 Total costs and earnings 267,445 205,319 Less billings to date (244,280 ) (213,242 ) Costs and estimated earnings in excess of billings $ 23,165 $ (7,923 ) The net balance in process is classified on the condensed consolidated and combined balance sheets as of: June 30, December 31, Costs and estimated earnings in excess of billings $ 30,264 $ 7,959 Billings in excess of costs and estimated earnings (7,099 ) (15,882 ) Net balance in process $ 23,165 $ (7,923 )

Distributions to Stockholder

Distributions to Stockholder	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Distributions to Stockholder	Distributions to Stockholders and Members Prior to the Company's June 18, 2018 corporate reorganization, the Company made certain distributions to stockholders and members to cover their tax liabilities. During the three months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the six months ended June 30, 2018, the period from January 13, 2017 through June 30, 2017 (Successor), and the period from January 1, 2017 through January 12, 2017 (Predecessor), the Company made distributions of $686 , $0 , $686 , $15,498 and $20,660 , respectively, a portion of which was used to pay for income taxes.

Stock_Unit Based Compensation

Stock/Unit Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock/Unit Based Compensation	Stock/Unit Based Compensation The Charah Management LLC Limited Liability Agreement provided for the issuance of up to 1,000 Series C interests ("Charah Series C Profits Interests"). In 2017 Charah Management adopted the Charah Series C Profits Interest Plan and issued 650 of such units to employees. Charah Series C Profits Interests participated in distributions to Charah members based on specified rates of return being realized to the Charah Series A and Charah Series B membership interest. The Charah Series C Profits Interest Plan is no longer in place following our corporate reorganization and related IPO. Charah Series C Profits Interests vested ratably in each of the first five anniversaries of their grant date with vesting accelerated upon a change of control. 540 Charah Series C Profits Interests were unvested at June 18, 2018 and were canceled as a result of the corporate reorganization that occurred upon the closing of the IPO (see further discussed below). The Charah Series C Profits Interests were valued based upon a contingent claims analysis to allocate the total implied equity value as of the valuation date amongst the various equity securities classes, with breakpoints estimated considering relative seniority, liquidation preferences, and conversion features. An assumed volatility of 30% based upon a comparable public company analysis was used in the determination of fair value. The weighted–average grant date fair value of the Charah Series C Profits Interest granted during 2017 was $3 per unit, resulting in $2,100 of total compensation costs which was expected to vest over 5 years . There was $1,679 of unrecognized compensation as of June 30, 2018 . During the three months ended June 30, 2018 and 2017, $103 and $85 , respectively, of compensation expense was recognized related to the Charah Series C Profits interests. During the six months ended June 30, 2018 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor) and the period from January 1, 2017 through January 12, 2017 (Predecessor) compensation expense of $214 , $141 and $0 , respectively, was recognized related to the Charah Series C Profits Interests. The Allied Power Management LLC Limited Liability Agreement provided for the issuance of up to 1,000 Allied Series C profits interests (“Allied Series C Profits Interests”). In 2017 Allied adopted the Allied Series C Profits Interest Plan and issued 550 of such units to employees. The Allied Series C Profits Interest Plan is no longer in place following our corporate reorganization and related IPO. Allied Series C Profits Interests participated in distributions to Allied members based upon specified rates of return being realized to the Allied Series A and Allied Series B membership interest. Allied Series C Profits Interests vested immediately upon grant. The Allied Series C Profits Interests were valued based upon a contingent claims analysis to allocate the total implied equity value as of the valuation date amongst the various equity securities classes, with breakpoints estimated considering relative seniority, liquidation preferences, and conversion features. An assumed volatility of 32.5% based upon a comparable public company analysis was used in the determination of fair value. The average grant date fair value of the Allied Series C Profits Interest granted during 2017 was $0 dollars per unit. There was $0 of unrecognized compensation as of June 30, 2018 . No compensation expense was recognized during the three and six months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor), and the period from January 1, 2017 through January 12, 2017 (Predecessor) related to Allied Series C Profits Interests. In conjunction with the funding of the investment in Allied Power Holdings in July 2017, select individuals, including members of the management team at Allied, were given the opportunity to invest, via an aggregator entity, Allied Management Holdings, alongside, and on the same basis as, the existing investment group. In exchange for their investment, common equity interests (Series B) in both Allied Power Holdings and Charah Management were issued. For those members of management, 1.9 million Charah Management LLC Series B Membership Interests and 0.1 million Allied Power Management LLC Series B Membership Interests were granted as a deemed contribution and a portion was invested via a cash contribution. All rights under these membership interests were fully vested at the time of the grant. There was $2,080 of compensation expense recorded in 2017 related to these Series B membership interest grants. No compensation expense was recognized during the three months ended June 30, 2018 (Successor), the period from January 13, 2017 through March 31, 2017 (Successor), and the period from January 1, 2017 through January 12, 2017 (Predecessor). In connection with the corporate reorganization that occurred upon the closing of the IPO, the holders of Charah Series C Profits Interests and Allied Series C Profits Interests received 1,215,956 shares of common stock (the “Management Reorganization Consideration”) in exchange for the contribution to the Company of their Charah Series C Profits Interests and Allied Series C Profits Interests, of which 911,963 shares are subject to time based vesting conditions, as well as performance vesting conditions, based on specified EBITDA targets and achievement of certain safety metrics, which will be determined at a future date. In addition, 272,708 shares of common stock were issued under the 2018 Omnibus Incentive Plan (see further discussion below), of which 204,532 shares are subject to the same time-based vesting conditions and performance vesting conditions as the shares issued in accordance with the Management Reorganization Consideration. The fair value of the awards was calculated initially as $12 per share, and will be updated thereafter for changes at each reporting period until the performance targets are approved by the board of directors. The fair value of the awards is recognized over the required service period for each grant. Upon the closing of the IPO, the board of directors of the Company adopted the 2018 Omnibus Incentive Plan (the “2018 Plan”), pursuant to which employees, consultants and directors of the Company and its affiliates, including named executive officers, are eligible to receive awards. The 2018 Plan provides for the grant of stock options, stock appreciation rights, restricted stock, restricted stock units, bonus stock, dividend equivalents, other stock-based awards, substitute awards, annual incentive awards and performance awards intended to align the interests of participants with those of Company stockholders. The Company has reserved 3,006,582 shares of common stock for issuance under the 2018 Plan, and all future equity awards described above will be issued pursuant to the 2018 Plan. The Company issued 44,198 shares under the 2018 Plan that vest over one year. The fair value of the awards was calculated as $12 per share, which will be recognized over the one-year vesting period. During the three months ended June 30, 2018, $1,189 of compensation expense was recognized related to the shares issued in accordance with the Management Reorganization Consideration and the 2018 Plan. As of June 30, 2018, there was approximately $4,958 of total compensation expense, subject to changes in fair value as the performance targets are approved by the board of directors, related to unvested awards not yet recognized, which will be recognized in future periods in accordance with applicable vesting terms.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company from time to time, in the ordinary course of business, is named as a defendant in various lawsuits. In management’s opinion, the gross liability from such lawsuits is not considered to be material to the Company's condensed consolidated and combined financial condition or results of operations. We cannot predict the outcome of such lawsuits or the amount of time and expense that will be required to resolve such lawsuits. If such litigation were to be determined adversely to our interests, or if we were forced to settle any matter for a significant amount, such resolution or settlement could have a negative effect on our business, results of operations and financial condition.

Business Segment and Related In

Business Segment and Related Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Business Segment and Related Information	Business Segment and Related Information The Company has identified the following reportable segments, Environmental Solutions and Maintenance & Technical Services, as each met the quantitative threshold of generating revenues equal to or greater than 10 percent of the combined revenue of all operating segments. Management evaluates the performance of each segment based on segment gross profit, which is calculated as revenues less cost of sales. For the three months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the six months ended June 30, 2018 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor) and the period January 1, 2017 through January 12, 2017 (Predecessor), there are no intersegment revenues or other intersegment transactions. Segment assets are also evaluated by management based on each segment’s investment in property and equipment. Assets (other than property and equipment and goodwill) are not allocated to segments. Summarized financial information with respect to the reportable segments is as follows: Successor Three Months Ended June 30, 2018 ES M&TS All Other Total Revenue $ 90,113 $ 105,610 $ — $ 195,723 Segment gross profit 22,096 8,453 — 30,549 Segment depreciation and amortization expense 5,334 1,378 1,992 8,704 Three Months Ended June 30, 2017 ES M&TS All Other Total Revenue $ 61,638 $ 12,766 $ — $ 74,404 Segment gross profit 17,505 2,989 — 20,494 Segment depreciation and amortization expense 5,983 610 49 6,642 Six Months Ended June 30, 2018 ES M&TS All Other Total Revenue $ 137,897 $ 213,355 $ — $ 351,252 Segment gross profit 34,565 15,082 — 49,647 Segment depreciation and amortization expense 10,744 2,407 3,984 17,135 Expenditures for segment assets 3,445 4,788 — 8,233 Period from January 13, 2017 through June 30, 2017 ES M&TS All Other Total Revenue $ 109,495 $ 23,874 $ — $ 133,369 Segment gross profit 30,541 5,682 — 36,223 Segment depreciation and amortization expense 11,570 1,134 95 12,799 Expenditures for segment assets 2,038 2,383 17 4,438 Predecessor Period from January 1, 2017 through January 12, 2017 ES M&TS All Other Total Revenue $ 7,451 $ 1,679 $ — $ 9,130 Segment gross profit 1,412 417 — 1,829 Segment depreciation and amortization expense 688 70 5 763 Expenditures for segment assets — — — — Successor As of June 30, 2018 ES M&TS All Other Total Segment property and equipment, net $ 76,129 $ 33,153 $ 371 $ 109,653 Segment goodwill 59,809 16,622 — 76,431 As of December 31, 2017 ES M&TS All Other Total Segment property and equipment, net $ 75,764 $ 23,725 $ 441 $ 99,930 Segment goodwill 56,846 16,622 — 73,468 The following is a reconciliation of segment gross profit to net income: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Segment gross profit $ 30,549 $ 20,494 $ 49,647 $ 36,223 $ 1,829 General and administrative expenses 18,937 7,463 33,319 13,979 3,170 Interest expense (5,543 ) (1,728 ) (9,674 ) (2,783 ) (4,181 ) Income from equity method investment 699 270 1,286 477 48 Income tax expense 2,906 — 2,906 — — Net income (loss) $ 3,862 $ 11,573 $ 5,034 $ 19,938 $ (5,474 ) The following is a reconciliation of segment assets to total assets: As of June 30, 2018 As of December 31, 2017 Segment property and equipment, net $ 109,653 $ 99,930 Segment goodwill 76,431 73,468 Non-segment assets 245,849 204,253 Total assets $ 431,933 $ 377,651

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company is a "C" Corporation under the Internal Revenue Code of 1986, as amended, and, as a result, will be subject to U.S. federal, state and local income taxes. The Company's subsidiaries previously operated as partnerships for income tax purposes. Prior to the contribution of assets and liabilities to the Company on June 18, 2018, the subsidiaries passed through their taxable income to their owners for U.S federal and other state and local income tax purposes and thus the subsidiaries were not subject to U.S. federal income taxes or other state or local income taxes, except for franchise tax at the state level. Accordingly, the financial data attributable prior to the contribution on June 18, 2018 contains no provision for U.S. federal income taxes or income taxes in any state or locality other than franchise taxes. The Company has determined its opening balance for deferred income tax assets and liabilities to be a net deferred tax liability of $2,481 based on the future tax effects of temporary differences between the financial statement value and tax basis of assets and liabilities contributed to the Company upon conversion as a taxable corporation on June 18, 2018. In accordance with ASC 740, the tax effects have been recorded as a separate item of income tax expense. In order to determine the tax provision related to operating income at the end of each interim period, the Company estimates the annual effective tax rate and applies that to its pre-tax earnings. The Company's pre-tax earnings for the period ended June 30, 2018 included only 13 days of operating income subject to corporate income taxes for which the Company is liable. The computation of the annual estimated effective tax rate at each interim period requires certain estimates and judgments including, but not limited to, the expected operating income for the year, estimated permanent differences between book and tax amounts, and the likelihood of recovering deferred tax assets generated in the current year. The accounting estimates used to compute the provision for income taxes may change as new events occur and additional information is obtained. The Company’s effective tax rate, excluding discrete items, for the 13 days ended June 30, 2018 of 23.7% differs from the statutory rate of 21% for Federal income tax and 5.3% for the estimated state rate. This is primarily due to income allocable to a non-controlling interest related to a consolidated partnership investment. The Company’s income tax returns for the year ended December 31, 2018 will be its initial tax returns filed with the U.S. federal, state and local governments. The examination of prior period tax returns filed for partnerships contributed to the Company in the reorganization could impact the Company’s tax expense and tax balance sheet accounts. The Company acquired a foreign subsidiary at formation and the subsidiary is subject to examination for prior calendar years, however, the Company is not aware of any potential adjustments for prior years and any such adjustment should not be material to the financial statements.

Earnings (Losses) Per Share

Earnings (Losses) Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings (Losses) Per Share	Earnings (Losses) Per Share Basic earnings (losses) per share is computed by dividing net income (loss) attributable to Charah Solutions shareholders by the weighted average number of shares outstanding during the period. Diluted earnings (losses) per share reflects all potential dilutive ordinary shares outstanding during the period and is computed by dividing net income (loss) available to Charah Solutions, Inc shareholders by the weighted average number of shares outstanding during the period increased by the number of additional shares that would have been outstanding as dilutive securities. For the periods prior to the IPO, the average number of ordinary shares outstanding used to calculate basic and diluted earnings (losses) per share was based on the ordinary shares that were outstanding at the time of the IPO. Basic and diluted earnings (losses) per share is determined using the following information: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Numerator: Net income (loss) attributable to Charah Solutions, Inc. $ 3,220 $ 10,771 $ 4,025 $ 18,866 $ (5,528 ) Denominator (in millions): Weighted average shares outstanding 24.5 23.7 24.1 23.7 N/A Dilutive share-based awards 0.9 0.8 0.8 0.8 N/A Total weighted average shares outstanding, including dilutive shares 25.4 24.5 24.9 24.5 N/A Basic earnings (losses) per share $ 0.13 $ 0.45 $ 0.17 $ 0.80 N/A Diluted earnings (losses) per share $ 0.13 $ 0.44 $ 0.16 $ 0.77 N/A

Nature of Business and Basis 21

Nature of Business and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis for Presentation The Company’s fiscal year ends December 31. The accompanying unaudited condensed consolidated and combined financial statements include the accounts of the Company and its consolidated subsidiaries. Intercompany transactions and balances have been eliminated in consolidation. The accompanying unaudited condensed consolidated and combined financial statements have been prepared in accordance with rules and regulations of the Securities and Exchange Commission ("SEC") for quarterly reports on Form 10-Q. In the opinion of management, all adjustments considered necessary for a fair presentation have been included, which consist of normal recurring adjustments. Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606) , requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The core principle of ASU 2014-09 is to recognize revenues when a customer obtains control of a good or service, in an amount that reflects the consideration to which an entity is expected to be entitled for those goods or services. The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective and permits the use of either a full retrospective or retrospective with cumulative effect transition method. In August 2015, the FASB issued ASU 2015-14, which deferred the effective date of ASU 2014-09 by one year. The updated standard will be effective for the year ending December 31, 2019, with early adoption permitted. The Company has not yet selected a transition method and is currently evaluating the effect that the new standard will have on the financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , requiring all leases to be recognized on the balance sheet as a right-of-use asset and a lease liability, unless the lease is a short-term lease (generally a lease with a term of twelve months or less). At the commencement date of the lease, the Company will recognize: 1) a lease liability for the Company’s obligation to make payments under the lease agreement, measured on a discounted basis; and 2) a right-of-use asset that represents the Company's right to use, or control the use of, the specified asset for the lease term. Upon adopting the ASU, the Company will be required to recognize and measure their leases at the beginning of the earliest period presented using a modified retrospective approach. ASU 2016-02 will be effective for the Company for the year ending December 31, 2020, with early adoption permitted. The Company is currently evaluating the effect that the new standard will have on the consolidated and combined financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments . This update addresses specific cash flow issues, including debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and proceeds from the settlement of insurance claims. The guidance is effective for fiscal years beginning after December 15, 2018. The Company is currently evaluating the effect that the new standard will have on the consolidated and combined financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) . This ASU requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Upon adopting the ASU, amounts generally described as restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. ASU 2016-18 will be effective for the Company beginning after December 15, 2018 with regard to fiscal years and beginning after December 15, 2019 with regard to interim periods within fiscal years, with early adoption permitted. The Company is currently evaluating the effect that the new standard will have on the condensed consolidated and combined financial statements. In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business , which provides guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 requires entities to use a screen test to determine when an integrated set of assets and activities is not a business or if the integrated set of assets and activities needs to be further evaluated against the framework. The Company adopted the new standard effective January 1, 2018 on a prospective basis. The new standard did not have a material impact on our condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . The ASU simplifies the measurement of goodwill impairment by eliminating the requirement that an entity compute the implied fair value of goodwill based on the fair values of its assets and liabilities to measure impairment. Instead, goodwill impairment will be measured as the difference between the fair value of the reporting unit and the carrying value of the reporting unit. The ASU also clarifies the treatment of the income tax effect of tax deductible goodwill when measuring goodwill impairment loss. The Company will be required to adopt ASU 2017-04 as of January 1, 2020. ASU 2017-04 must be applied prospectively with early adoption permitted. The Company is currently evaluating the impact of the adoption of this guidance on its consolidated and combined financial statements. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting , to provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in ASC 718. The Company adopted the new standard effective January 1, 2018 on a prospective basis. The new standard did not have a material impact on our condensed consolidated and combined financial statements.

Business Combination (Tables)

Business Combination (Tables)	6 Months Ended
	Jun. 30, 2018
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	Cash acquired $ 17 Net working capital, excluding cash 21,185 Property, plant and equipment 5,300 Trade name intangible assets 633 Customer relationship intangible assets 1,427 Technology 2,102 Non-compete and other agreements 1,373 Goodwill 2,963 Total purchase price $ 35,000 By the application of “push-down” accounting, Charah’s assets and liabilities were accordingly adjusted to fair value. Net working capital $ 26,704 Net operating assets/liabilities 9,679 Property, plant and equipment 107,876 Rail easement 110 Purchase option liability (29,883 ) Trade name intangible assets 34,330 Customer relationship intangible assets 78,200 Goodwill 73,468 Total purchase price $ 300,484
Business Acquisition, Pro Forma Information	The following unaudited information presents the pro forma consolidated revenue and net income for the periods indicated as if the acquisition had been included in the consolidated results of operations beginning January 1, 2017. Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Pro forma revenue $ 195,723 $ 92,306 $ 368,075 $ 167,005 $ 11,158 Pro forma net income (loss) attributable to Charah Solutions, Inc. 3,381 10,595 4,811 19,096 (5,447 )

Equity Method Investments (Tabl

Equity Method Investments (Tables)	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Summarized balance sheet information of our equity method investment entity as of: Balance Sheet Data June 30, December 31, Current assets $ 2,784 $ 1,946 Noncurrent assets 764 764 Total assets $ 3,548 $ 2,710 Current liabilities 432 298 Equity of Charah 5,354 5,006 Equity of joint venture partner (2,238 ) (2,594 ) Total liabilities and members' equity $ 3,548 $ 2,710 Summarized financial performance of our equity method investment entity is as follows: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1 2017, through January 12, 2017 Operating Data Revenues $ 2,664 $ 2,243 $ 5,029 $ 3,771 $ 300 Net income $ 1,397 $ 540 $ 2,572 $ 953 $ 96 The Company’s share of net income $ 699 $ 270 $ 1,286 $ 477 $ 48 The following table reflects our proportional ownership activity in our investment account: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1 2017, through January 12, 2017 Opening balance $ 5,342 $ 5,132 $ 5,006 $ 5,289 $ 5,241 Distributions (687 ) (287 ) (938 ) (651 ) — Share of net income 699 270 1,286 477 48 Closing balance $ 5,354 $ 5,115 $ 5,354 $ 5,115 $ 5,289

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	The Company’s intangible assets consist of the following as: June 30, 2018 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 11,078 $ 67,122 Other - Rail easement 110 35 75 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 186,108 11,113 174,995 Other - Patents acquired (Note 2) 2,133 53 2,080 Non-compete and other agreements acquired (Note 2) 1,373 54 1,319 Customer relationships acquired (Note 2) 1,427 36 1,391 Trade name acquired (Note 2) 633 32 601 Goodwill acquired (Note 2) 2,963 — 2,963 Closing balance $ 194,637 $ 11,288 $ 183,349 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 7,168 $ 71,032 Rail easement 110 23 87 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 Closing balance $ 186,108 $ 7,191 $ 178,917
Schedule of Intangible Assets and Goodwill	The Company’s intangible assets consist of the following as: June 30, 2018 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 11,078 $ 67,122 Other - Rail easement 110 35 75 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 186,108 11,113 174,995 Other - Patents acquired (Note 2) 2,133 53 2,080 Non-compete and other agreements acquired (Note 2) 1,373 54 1,319 Customer relationships acquired (Note 2) 1,427 36 1,391 Trade name acquired (Note 2) 633 32 601 Goodwill acquired (Note 2) 2,963 — 2,963 Closing balance $ 194,637 $ 11,288 $ 183,349 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 78,200 $ 7,168 $ 71,032 Rail easement 110 23 87 Trade name (indefinite lived) 34,330 — 34,330 Goodwill 73,468 — 73,468 Closing balance $ 186,108 $ 7,191 $ 178,917
Schedule Of Finite Lived Intangible Assets, Estimated Useful Life	As of June 30, 2018 , and December 31, 2017 , definite lived intangible assets include customer relationships, patents, non-compete and licensing agreements, trade name, and a rail easement. These assets are amortized on a straight-line basis over their estimated useful lives as shown in the table below. Amortization expense was $2,136 , $1,961 , $4,097 , $3,269 and $0 during the three months ended June 30, 2018 (Successor), the three months ended June 30, 2017 (Successor), the six months ended June 30, 2018 (Successor), the period from January 13, 2017 through June 30, 2017 (Successor) and the period from January 1, 2017 through January 12, 2017 (Predecessor), respectively. Definite Lived Intangible Useful Life Customer relationships 10 years Patents 10 years Non-compete agreement 2 years Licensing agreements 15 years Trade name 5 years Rail easement 4.5 years

Notes Payable (Tables)

Notes Payable (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of Debt	The following table summarizes the major components of debt at each balance sheet date and provides maturities and interest rate ranges for each major category as of June 30, 2018 : June 30, December 31, 2017 Various equipment notes entered into in November 2017, payable in monthly installments ranging from $5 to $24 including interest at 5.2%, maturing in December 2022 through December 2023. The notes are secured by equipment with a net book value of $4,658 as of June 30, 2018 (Successor). $ 5,427 $ 5,910 Various equipment notes entered into in 2018, payable in monthly installments ranging from $6 to $38 including interest ranging from 5.90% to 6.80%, maturing in March 2023 through May 2025. The notes are secured by equipment with a net book value of $12,305 as of June 30, 2018 (Successor). 13,167 — In June 2018, the Company entered into a $12,000 convertible non-revolving credit note with a bank. The credit note will convert to a term loan on April 10, 2019, with a maturity date of April 10, 2024. Interest on borrowings prior to the conversion date is calculated using a floating rate equal to 2% in excess of the London Inter-Bank Offered Rate (LIBOR). At the conversion date, interest can be either calculated based on the aforementioned rate or at a fixed rate equal to 2% in excess of the 5-year Swap Rate in effect at the conversion date, based on the Company's preference. There was $3,424 drawn against the credit note as of June 30, 2018 (Successor). 3,424 — In December 2017, Charah entered into a $10,000 equipment line with a bank, secured by all equipment purchased with the proceeds of the loan. Interest is calculated on any outstanding amounts using a fixed rate of 4.5%. The equipment line converts to a term loan in September 2018, with a maturity date of June 22, 2023. There was $8,118 drawn against the equipment line as of June 30, 2018 (Successor). 8,118 3,244 A credit agreement with a bank, entered into during October 2017, providing for a senior secured term loan B facility with an initial commitment of $250,000 (the Term Loan). The interest rates per annum applicable to the loans under the Term Loan are based on a fluctuating rate of interest measured by reference to, at the Company's election, either (1) LIBOR plus a 6.25% borrowing margin, or (2) an alternative base rate plus a 5.25% borrowing margin. The principal amount of the Term Loan will amortize at a rate of 7.5% per annum with all remaining outstanding amounts under the Term Loan due on the Term Loan maturity date. A portion of the IPO proceeds was used to prepay scheduled principal payments which would otherwise have been required through June 2020. The Term Loan has a scheduled maturity date of October 25, 2024. The Term Loan is collateralized by substantially all the assets of the Company. 205,313 250,000 Total 235,449 259,154 Less debt issuance costs (10,676 ) (11,460 ) 224,773 247,694 Less current maturities (8,185 ) (19,996 ) Notes payable due after one year $ 216,588 $ 227,698

Costs and Estimated Earnings 26

Costs and Estimated Earnings on Uncompleted Contracts (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Costs in Excess of Billings and Billings in Excess of Costs	Costs and estimated earnings on uncompleted contracts as of: June 30, December 31, Costs incurred on uncompleted contracts $ 197,033 $ 151,963 Estimated earnings 70,412 53,356 Total costs and earnings 267,445 205,319 Less billings to date (244,280 ) (213,242 ) Costs and estimated earnings in excess of billings $ 23,165 $ (7,923 ) The net balance in process is classified on the condensed consolidated and combined balance sheets as of: June 30, December 31, Costs and estimated earnings in excess of billings $ 30,264 $ 7,959 Billings in excess of costs and estimated earnings (7,099 ) (15,882 ) Net balance in process $ 23,165 $ (7,923 )

Business Segment and Related 27

Business Segment and Related Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Summarized financial information with respect to the reportable segments is as follows: Successor Three Months Ended June 30, 2018 ES M&TS All Other Total Revenue $ 90,113 $ 105,610 $ — $ 195,723 Segment gross profit 22,096 8,453 — 30,549 Segment depreciation and amortization expense 5,334 1,378 1,992 8,704 Three Months Ended June 30, 2017 ES M&TS All Other Total Revenue $ 61,638 $ 12,766 $ — $ 74,404 Segment gross profit 17,505 2,989 — 20,494 Segment depreciation and amortization expense 5,983 610 49 6,642 Six Months Ended June 30, 2018 ES M&TS All Other Total Revenue $ 137,897 $ 213,355 $ — $ 351,252 Segment gross profit 34,565 15,082 — 49,647 Segment depreciation and amortization expense 10,744 2,407 3,984 17,135 Expenditures for segment assets 3,445 4,788 — 8,233 Period from January 13, 2017 through June 30, 2017 ES M&TS All Other Total Revenue $ 109,495 $ 23,874 $ — $ 133,369 Segment gross profit 30,541 5,682 — 36,223 Segment depreciation and amortization expense 11,570 1,134 95 12,799 Expenditures for segment assets 2,038 2,383 17 4,438 Predecessor Period from January 1, 2017 through January 12, 2017 ES M&TS All Other Total Revenue $ 7,451 $ 1,679 $ — $ 9,130 Segment gross profit 1,412 417 — 1,829 Segment depreciation and amortization expense 688 70 5 763 Expenditures for segment assets — — — — Successor As of June 30, 2018 ES M&TS All Other Total Segment property and equipment, net $ 76,129 $ 33,153 $ 371 $ 109,653 Segment goodwill 59,809 16,622 — 76,431 As of December 31, 2017 ES M&TS All Other Total Segment property and equipment, net $ 75,764 $ 23,725 $ 441 $ 99,930 Segment goodwill 56,846 16,622 — 73,468
Reconciliation of Revenue from Segments to Consolidated	The following is a reconciliation of segment gross profit to net income: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Segment gross profit $ 30,549 $ 20,494 $ 49,647 $ 36,223 $ 1,829 General and administrative expenses 18,937 7,463 33,319 13,979 3,170 Interest expense (5,543 ) (1,728 ) (9,674 ) (2,783 ) (4,181 ) Income from equity method investment 699 270 1,286 477 48 Income tax expense 2,906 — 2,906 — — Net income (loss) $ 3,862 $ 11,573 $ 5,034 $ 19,938 $ (5,474 )
Reconciliation of Assets from Segment to Consolidated	The following is a reconciliation of segment assets to total assets: As of June 30, 2018 As of December 31, 2017 Segment property and equipment, net $ 109,653 $ 99,930 Segment goodwill 76,431 73,468 Non-segment assets 245,849 204,253 Total assets $ 431,933 $ 377,651

Earnings (Losses) Per Share (Ta

Earnings (Losses) Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Basic and diluted earnings (losses) per share is determined using the following information: Successor Predecessor Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Period from January 13, 2017 through June 30, 2017 Period from January 1, 2017 through January 12, 2017 Numerator: Net income (loss) attributable to Charah Solutions, Inc. $ 3,220 $ 10,771 $ 4,025 $ 18,866 $ (5,528 ) Denominator (in millions): Weighted average shares outstanding 24.5 23.7 24.1 23.7 N/A Dilutive share-based awards 0.9 0.8 0.8 0.8 N/A Total weighted average shares outstanding, including dilutive shares 25.4 24.5 24.9 24.5 N/A Basic earnings (losses) per share $ 0.13 $ 0.45 $ 0.17 $ 0.80 N/A Diluted earnings (losses) per share $ 0.13 $ 0.44 $ 0.16 $ 0.77 N/A

Nature of Business and Basis 29

Nature of Business and Basis of Presentation (Details) - shares	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Bernhard Capital Partners Management, LP (BCP) | Common Stock
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Equity interest contributed in exchange for shares of stock (in shares)		17,514,745
CEP Holdings, Inc. | Common Stock
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Equity interest contributed in exchange for shares of stock (in shares)		4,605,465
Charah Management Holdings LLC | Common Stock
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Equity interest contributed in exchange for shares of stock (in shares)		907,113
Allied Management Holdings, LLC | Common Stock
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Equity interest contributed in exchange for shares of stock (in shares)		409,075
Pro Forma
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Effective income tax rate	25.00%		38.00%

Business Combination - Charah M

Business Combination - Charah Management (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jan. 13, 2017
Business Acquisition [Line Items]
Goodwill	$ 76,431	$ 73,468
Charah Management LLC
Business Acquisition [Line Items]
Net working capital			$ 26,704
Net operating assets/liabilities			9,679
Property, plant and equipment			107,876
Purchase option liability			(29,883)
Goodwill			73,468
Total purchase price			$ 300,484
Bernhard Capital Partners Management, LP (BCP) | Charah Management LLC
Business Acquisition [Line Items]
Equity method investment, ownership percentage			76.00%
Rail easement | Charah Management LLC
Business Acquisition [Line Items]
Intangible assets			$ 110
Trade name intangible assets | Charah Management LLC
Business Acquisition [Line Items]
Intangible assets			34,330
Customer relationships | Charah Management LLC
Business Acquisition [Line Items]
Intangible assets			$ 78,200

Business Combination - SBC Mate

Business Combination - SBC Materials International, Inc. (Details) - USD ($) $ in Thousands	Mar. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill		$ 76,431	$ 73,468
SBC Materials International, Inc.
Business Acquisition [Line Items]
Purchase price	$ 35,000
Payment at closing	20,000
Additional payment to be paid based on certain performance metrics	15,000
Goodwill, expected tax deductible amount		4,143
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Cash acquired	17
Net working capital, excluding cash	21,185
Property, plant and equipment	5,300
Goodwill	2,963	2,963
Total purchase price	35,000
Allocation Of Purchase Price Adjustments [Abstract]
Increase in net working capital acquired, excluding cash		562
Increase in fair value of property, plant and equipment		807
Equity method investment reduction		611
Goodwill increase		432
Increase in depreciation expense		21
Decrease in amortization expense		29
SBC Materials International, Inc. | Trade name intangible assets
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets	633
Allocation Of Purchase Price Adjustments [Abstract]
Decrease in fair value of intangible assets		14
SBC Materials International, Inc. | Customer relationship intangible assets
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets	1,427
Allocation Of Purchase Price Adjustments [Abstract]
Decrease in fair value of intangible assets		286
SBC Materials International, Inc. | Technology
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets	2,102
SBC Materials International, Inc. | Non-compete and other agreements
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Intangible assets	$ 1,373
Allocation Of Purchase Price Adjustments [Abstract]
Decrease in fair value of intangible assets		75
SBC Materials International, Inc. | Other Intangible Assets
Allocation Of Purchase Price Adjustments [Abstract]
Decrease in fair value of intangible assets		$ 815

Business Combination - Pro Form

Business Combination - Pro Forma (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Actual revenue from the acquired business		$ 16,573		$ 16,573
Actual earnings from the acquired business		954		954
Pro forma revenue		195,723	$ 92,306	368,075	$ 167,005
Pro forma net income (loss) attributable to Charah Solutions, Inc.		3,381	$ 10,595	4,811	$ 19,096
Direct acquisition costs		$ 573		$ 573
Predecessor
Business Acquisition [Line Items]
Pro forma revenue	$ 11,158
Pro forma net income (loss) attributable to Charah Solutions, Inc.	$ (5,447)

Equity Method Investments - Sum

Equity Method Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Equity Method Investment, Summarized Financial Information, Assets [Abstract]
Receivable due from equity method investment		$ 126		$ 126		$ 61
Current assets		2,784		2,784		1,946
Noncurrent assets		764		764		764
Total assets		3,548		3,548		2,710
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]
Current liabilities		432		432		298
Equity of Charah		5,354		5,354		5,006
Equity of joint venture partner		(2,238)		(2,238)		(2,594)
Total liabilities and members' equity		3,548		3,548		$ 2,710
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues		2,664	$ 2,243	5,029	$ 3,771
Net income		1,397	540	2,572	953
The Company’s share of net income		$ 699	$ 270	$ 1,286	$ 477
Predecessor
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	$ 300
Net income	96
The Company’s share of net income	$ 48

Equity Method Investments - Own

Equity Method Investments - Ownership (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Equity Method Investment, Proportional Ownership Activity [Roll Forward]
Opening balance		$ 5,342	$ 5,132	$ 5,006	$ 5,289
Distributions		(687)	(287)	(938)	(651)
Share of net income		699	270	1,286	477
Closing balance	$ 5,289	$ 5,354	$ 5,115	$ 5,354	5,115
Predecessor
Equity Method Investment, Proportional Ownership Activity [Roll Forward]
Opening balance	5,241				$ 5,289
Distributions	0
Share of net income	48
Closing balance	$ 5,289

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization		$ 11,288		$ 11,288		$ 7,191
Goodwill		73,468		73,468
Intangible assets, gross, excluding intangible assets acquired		186,108		186,108
Accumulated Amortization, excluding intangible assets acquired		11,113		11,113
Intangible assets, net, excluding intangible assets acquired		174,995		174,995
Intangible assets, gross		194,637		194,637		186,108
Intangible assets, net		183,349		183,349		178,917
Amortization of intangible assets		2,136	$ 1,961	4,097	$ 3,269
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross						78,200
Finite lived intangible assets, excluding additions, gross		78,200		78,200
Accumulated Amortization		11,078		11,078		7,168
Finite lived intangible assets, excluding additions, net		67,122		67,122
Finite lived intangible assets, net		68,513		$ 68,513		71,032
Finite-lived intangible asset, useful life				10 years
Other - Rail easement
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross		110		$ 110		110
Accumulated Amortization		35		35		23
Finite lived intangible assets, net		75		$ 75		87
Finite-lived intangible asset, useful life				4 years 6 months
Other - Patents acquired (Note 2)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life				10 years
Non-compete and other agreements acquired (Note 2)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, net		1,319		$ 1,319		0
Finite-lived intangible asset, useful life				2 years
Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life				5 years
Licensing agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life				15 years
SBC Materials International, Inc. | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross		1,427		$ 1,427
Accumulated Amortization		36		36
Finite lived intangible assets, net		1,391		1,391
SBC Materials International, Inc. | Other - Patents acquired (Note 2)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross		2,133		2,133
Accumulated Amortization		53		53
Finite lived intangible assets, net		2,080		2,080
SBC Materials International, Inc. | Non-compete and other agreements acquired (Note 2)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross		1,373		1,373
Accumulated Amortization		54		54
Finite lived intangible assets, net		1,319		1,319
SBC Materials International, Inc. | Trade name
Acquired Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross		633		633
Accumulated Amortization		32		32
Finite lived intangible assets, net		601		601
Predecessor
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 0
Trade name
Acquired Indefinite-lived Intangible Assets [Line Items]
Trade name (indefinite lived)		$ 34,330		$ 34,330		$ 34,330

Credit Agreement (Details)

Credit Agreement (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 224,773,000	$ 247,694,000
Revolving Credit Facility | Line of Credit | Revolving Credit Facility due October 25, 2022
Debt Instrument [Line Items]
Initial commitment	$ 45,000,000
Unused capacity, commitment fee percentage	0.50%
Long-term debt	$ 0	$ 0
Revolving Credit Facility | Line of Credit | Revolving Credit Facility due October 25, 2022 | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit Facility | Line of Credit | Revolving Credit Facility due October 25, 2022 | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Letter of Credit | Line of Credit | Revolving Credit Facility due October 25, 2022
Debt Instrument [Line Items]
Commitment fee percentage	2.00%
Long-term debt	$ 12,500,000

Notes Payable (Details)

Notes Payable (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total	$ 235,449,000	$ 259,154,000
Less debt issuance costs	10,676,000	11,460,000
Long-term debt	224,773,000	247,694,000
Less current maturities	(8,185,000)	(19,996,000)
Notes payable due after one year	216,588,000	227,698,000
Notes Payable | Equipment Notes Payable, 5.2 % Due December 2022 and 2023
Debt Instrument [Line Items]
Total	$ 5,427,000	5,910,000
Interest rate	5.20%
Equipment net book value	$ 4,658,000
Notes Payable | Equipment Notes Payable, 5.2 % Due December 2022 and 2023 | Minimum
Debt Instrument [Line Items]
Monthly installments	5,000
Notes Payable | Equipment Notes Payable, 5.2 % Due December 2022 and 2023 | Maximum
Debt Instrument [Line Items]
Monthly installments	24,000
Notes Payable | Equipment Notes Payable, 5.90% and 6.80% Due March 2023 Through May 2025
Debt Instrument [Line Items]
Total	13,167,000	0
Equipment net book value	12,305,000
Notes Payable | Equipment Notes Payable, 5.90% and 6.80% Due March 2023 Through May 2025 | Minimum
Debt Instrument [Line Items]
Monthly installments	$ 6,000
Interest rate	5.90%
Notes Payable | Equipment Notes Payable, 5.90% and 6.80% Due March 2023 Through May 2025 | Maximum
Debt Instrument [Line Items]
Monthly installments	$ 38,000
Interest rate	6.80%
Notes Payable | Equipment Notes Payable Two, 5.90% and 6.80% Due March 2023 Through May 2025
Debt Instrument [Line Items]
Total	$ 3,424,000	0
Equipment net book value	3,853,000
Notes Payable | Equipment Notes Payable Two, 5.90% and 6.80% Due March 2023 Through May 2025 | Minimum
Debt Instrument [Line Items]
Monthly installments	$ 6,000
Interest rate	5.90%
Notes Payable | Equipment Notes Payable Two, 5.90% and 6.80% Due March 2023 Through May 2025 | Maximum
Debt Instrument [Line Items]
Monthly installments	$ 38,000
Interest rate	6.80%
Line of Credit | 4.5% Equipment Line Of Credit
Debt Instrument [Line Items]
Total	$ 8,118,000	3,244,000
Long-term debt	$ 8,118,000
Interest rate	4.50%
Initial commitment	$ 10,000,000
Line of Credit | $250,000 Term Loan Due October 25, 2024
Debt Instrument [Line Items]
Total	$ 205,313,000	$ 250,000,000
Interest rate	7.50%
Initial commitment	$ 250,000,000
Line of Credit | $250,000 Term Loan Due October 25, 2024 | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	6.25%
Line of Credit | $250,000 Term Loan Due October 25, 2024 | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	5.25%

Interest Rate Swap (Details)

Interest Rate Swap (Details) - Interest Rate Swap - Not Designated as Hedging Instrument - USD ($)	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative, notional amount		$ 150,000,000		$ 150,000,000		$ 150,000,000
Gain on derivative		604,000	$ 0	2,228,000	$ 0
Other Assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value		$ 2,030,000		$ 2,030,000
Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value						$ 198,000
Predecessor
Derivatives, Fair Value [Line Items]
Gain on derivative	$ 0

Costs and Estimated Earnings 39

Costs and Estimated Earnings on Uncompleted Contracts - Activity (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Revenue Recognition and Deferred Revenue [Abstract]
Costs incurred on uncompleted contracts	$ 197,033	$ 151,963
Estimated earnings	70,412	53,356
Total costs and earnings	267,445	205,319
Less billings to date	(244,280)	(213,242)
Costs and estimated earnings in excess of billings	$ 23,165	$ (7,923)

Costs and Estimated Earnings 40

Costs and Estimated Earnings on Uncompleted Contracts - Balance Sheet Classification (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Revenue Recognition and Deferred Revenue [Abstract]
Costs and estimated earnings in excess of billings	$ 30,264	$ 7,959
Billings in excess of costs and estimated earnings	(7,099)	(15,882)
Costs and estimated earnings in excess of billings	$ 23,165	$ (7,923)

Distributions to Stockholder (D

Distributions to Stockholder (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Equity [Abstract]
Cash distributions paid	$ 20,660	$ 686	$ 0	$ 686	$ 15,498

Stock_Unit Based Compensation (

Stock/Unit Based Compensation (Details) - USD ($)	Jun. 18, 2018	Jan. 12, 2017	Jul. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Series C Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 0				$ 0
Series B Membership Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense				$ 0					$ 2,080,000
2018 Omnibus Incentive Plan | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to be issued (in units)				3,006,582			3,006,582
Vesting period							1 year
Issuance of shares (in shares)							44,198
Grant date fair value (in dollars per share)							$ 12
Charah Management LLC | Series B Membership Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted in period (in units)			1,900,000
Charah Management LLC | Series C Profits Interests Plan | Series C Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to be issued (in units)				1,000			1,000
Granted in period (in units)									650
Vesting period							5 years		5 years
Unvested units outstanding (in units)				540			540
Assumed volatility rate							30.00%
Weighted average grant date fair value (in dollars per share)									$ 3
Unrecognized compensation cost				$ 1,679,000			$ 1,679,000		$ 2,100,000
Compensation expense				$ 103,000	$ 85,000		$ 214,000	$ 141,000
Allied Power Management, LLC | Series B Membership Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted in period (in units)			100,000
Allied Power Management, LLC | Allied Series C Profits Interests Plan | Allied Series C Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized to be issued (in units)				1,000			1,000
Granted in period (in units)									550
Assumed volatility rate									32.50%
Weighted average grant date fair value (in dollars per share)									$ 0
Unrecognized compensation cost				$ 0			$ 0
Compensation expense		0		0		$ 0
Predecessor | Charah Management LLC | Series C Profits Interests Plan | Series C Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 0
Holders Of Charah Series C Profits Interests And Allied Series C Profits Interests | IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares (in shares)	1,215,956
Holders Of Charah Series C Profits Interests And Allied Series C Profits Interests | IPO | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares (in shares)	911,963
Holders Of Charah Series C Profits Interests And Allied Series C Profits Interests | IPO | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost				4,958,000			$ 4,958,000
Compensation expense				$ 1,189,000
Grant date fair value (in dollars per share)	$ 12
Holders Of Charah Series C Profits Interests And Allied Series C Profits Interests | IPO | 2018 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares (in shares)	272,708
Vesting Over One Year | Holders Of Charah Series C Profits Interests And Allied Series C Profits Interests | IPO | 2018 Omnibus Incentive Plan | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares (in shares)	204,532

Business Segment and Related 43

Business Segment and Related Information (Details) - USD ($)	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue		$ 195,723,000	$ 74,404,000	$ 351,252,000	$ 133,369,000
Segment gross profit		30,549,000	20,494,000	49,647,000	36,223,000
Segment depreciation and amortization expense		8,704,000	6,642,000	17,135,000	12,799,000
Expenditures for segment assets				8,233,000	4,438,000
Segment property and equipment, net		109,653,000		109,653,000		$ 99,930,000
Segment goodwill		76,431,000		76,431,000		73,468,000
Operating Segments
Segment Reporting Information [Line Items]
Segment gross profit		30,549,000	20,494,000	49,647,000	36,223,000
Segment property and equipment, net		109,653,000		109,653,000		99,930,000
Segment goodwill		76,431,000		76,431,000		73,468,000
Operating Segments | ES
Segment Reporting Information [Line Items]
Revenue		90,113,000	61,638,000	137,897,000	109,495,000
Segment gross profit		22,096,000	17,505,000	34,565,000	30,541,000
Segment depreciation and amortization expense		5,334,000	5,983,000	10,744,000	11,570,000
Expenditures for segment assets				3,445,000	2,038,000
Segment property and equipment, net		76,129,000		76,129,000		75,764,000
Segment goodwill		59,809,000		59,809,000		56,846,000
Operating Segments | M&TS
Segment Reporting Information [Line Items]
Revenue		105,610,000	12,766,000	213,355,000	23,874,000
Segment gross profit		8,453,000	2,989,000	15,082,000	5,682,000
Segment depreciation and amortization expense		1,378,000	610,000	2,407,000	1,134,000
Expenditures for segment assets				4,788,000	2,383,000
Segment property and equipment, net		33,153,000		33,153,000		23,725,000
Segment goodwill		16,622,000		16,622,000		16,622,000
Non-segment
Segment Reporting Information [Line Items]
Revenue		0	0	0	0
Segment gross profit		0	0	0	0
Segment depreciation and amortization expense		1,992,000	$ 49,000	3,984,000	95,000
Expenditures for segment assets				0	$ 17,000
Segment property and equipment, net		371,000		371,000		441,000
Segment goodwill		$ 0		$ 0		$ 0
Predecessor
Segment Reporting Information [Line Items]
Revenue	$ 9,130,000
Segment gross profit	1,829,000
Segment depreciation and amortization expense	763,000
Expenditures for segment assets	0
Predecessor | Operating Segments
Segment Reporting Information [Line Items]
Segment gross profit	1,829,000
Predecessor | Operating Segments | ES
Segment Reporting Information [Line Items]
Revenue	7,451,000
Segment gross profit	1,412,000
Segment depreciation and amortization expense	688,000
Expenditures for segment assets	0
Predecessor | Operating Segments | M&TS
Segment Reporting Information [Line Items]
Revenue	1,679,000
Segment gross profit	417,000
Segment depreciation and amortization expense	70,000
Expenditures for segment assets	0
Predecessor | Non-segment
Segment Reporting Information [Line Items]
Revenue	0
Segment gross profit	0
Segment depreciation and amortization expense	5,000
Expenditures for segment assets	$ 0

Business Segment and Related 44

Business Segment and Related Information - Reconciliation Of Segment Gross Profit to Net Income (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment gross profit		$ 30,549	$ 20,494	$ 49,647	$ 36,223
General and administrative expenses		18,937	7,463	33,319	13,979
Interest expense		(5,543)	(1,728)	(9,674)	(2,783)
Income from equity method investment		699	270	1,286	477
Income tax expense		2,906	0	2,906	0
Net income (loss)		3,862	11,573	5,034	19,938
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment gross profit		30,549	20,494	49,647	36,223
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
General and administrative expenses		18,937	7,463	33,319	13,979
Interest expense		(5,543)	(1,728)	(9,674)	(2,783)
Income from equity method investment		699	270	1,286	477
Income tax expense		$ 2,906	$ 0	$ 2,906	$ 0
Predecessor
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment gross profit	$ 1,829
General and administrative expenses	3,170
Interest expense	(4,181)
Income from equity method investment	48
Income tax expense	0
Net income (loss)	(5,474)
Predecessor | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Segment gross profit	1,829
Predecessor | Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
General and administrative expenses	3,170
Interest expense	(4,181)
Income from equity method investment	48
Income tax expense	$ 0

Business Segment and Related 45

Business Segment and Related Information - Reconciliation of Segment Assets to Total Assets (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Segment property and equipment, net	$ 109,653,000	$ 99,930,000
Goodwill	76,431,000	73,468,000
Assets	431,933,000	377,651,000
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Segment property and equipment, net	109,653,000	99,930,000
Goodwill	76,431,000	73,468,000
Non-segment
Segment Reporting, Asset Reconciling Item [Line Items]
Segment property and equipment, net	371,000	441,000
Goodwill	0	0
Non-segment assets	$ 245,849,000	$ 204,253,000

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 18, 2018
Income Tax Disclosure [Abstract]
Net deferred tax liability			$ 2,481
Effective income tax rate	23.70%	25.00%
Effective income tax rate, state rate	5.30%

Earnings (Losses) Per Share (De

Earnings (Losses) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income (loss) attributable to Charah Solutions, Inc.		$ 3,220	$ 10,771	$ 4,025	$ 18,866
Denominator (in millions):
Weighted average shares outstanding (in shares)		24.5	23.7	24.1	23.7
Dilutive share-based awards (in shares)		0.9	0.8	0.8	0.8
Total weighted average shares outstanding, including dilutive shares (in shares)		25.4	24.5	24.9	24.5
Basic earnings (losses) per share (in dollars per share)		$ 0.13	$ 0.45	$ 0.17	$ 0.80
Diluted earnings (losses) per share (in dollars per share)		$ 0.13	$ 0.44	$ 0.16	$ 0.77
Predecessor
Numerator:
Net income (loss) attributable to Charah Solutions, Inc.	$ (5,528)