Commitments and Contingencies	12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	18.Commitments and Contingencies The Company and one former and two current officers are named defendants in a class action lawsuit filed on April 11, 2019 in the United States District Court for the Southern District of Texas, Houston Division, seeking unstated compensatory damages under the federal securities laws allegedly arising from materially false and misleading statements during the period of March 13, 2018 to March 18, 2019. The complaint asserts, among other things, that the current and former officers caused the Company to overstate goodwill in certain periods; overstate accounts receivable; that the company lacked effective internal controls over financial reporting related to goodwill impairment testing and accounts receivable; and that as a result the required adjustments to goodwill and accounts receivable materially impacted the company’s financial statements causing the company’s stock price to be artificially inflated during the class period. The Company has responded to the complaint, considers all of these allegations without merit and is vigorously contesting the allegations. In addition, from time to time, the Company is a party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract, property damage, civil penalties or other losses, or injunctive or declaratory relief and on rare occasions punitive damages. With respect to such lawsuits, the Company accrues reserves when it is probable a liability has been incurred and the amount of loss can be reasonably estimated. The Company does not believe any of these or any other proceedings, individually or in the aggregate, would be expected to have a material adverse effect on results of operations, cash flows, or financial condition A legal matter was settled in the Company’s favor for $5.5 million during the first quarter of 2018. Settlement amounts were recorded in Other gain from continuing operations in the Consolidated Statement of Operations, Prepaid expenses and other (current portion of the notes receivable) and Other non-current assets (non-current portion of the notes receivable) in the Consolidated Balance Sheets. As of December 31, 2019, the current portion of the notes receivable was $0.8 million and the non-current portion was $2.5 million, net of $0.3 million of unamortized discount. Legal fees related to this matter were expensed as incurred during the respective reporting period. As a result of charges brought in September 2015 and October 2016 by the Houston Police Department, Environmental Enforcement, two subsidiaries of the Company were indicted at the request of the Harris County, Texas District Attorney’s Office by a duly organized Grand Jury of Harris County, Texas for separate but similar violations of the Texas Water Code, allegedly arising from the handling of construction concrete at certain work sites. Specifically, in each case the Company was charged with unlawfully, intentionally or knowingly discharging a waste or pollutant and is subject to a maximum fine of $250,000. The Company considers both cases without merit. However, without admitting to fault, the Company has, in both cases, agreed to diversion agreements under which the charges were dismissed, without prosecution, upon our payment of fines. None of these allegations nor the costs of defense, taken separately or as a whole, is expected to have a material impact on the Company’s balance sheet or its liquidity.

18.Commitments and Contingencies

The Company and one former and two current officers are named defendants in a class action lawsuit filed on April 11, 2019 in the United States District Court for the Southern District of Texas, Houston Division, seeking unstated compensatory damages under the federal securities laws allegedly arising from materially false and misleading statements during the period of March 13, 2018 to March 18, 2019. The complaint asserts, among other things, that the current and former officers caused the Company to overstate goodwill in certain periods; overstate accounts receivable; that the company lacked effective internal controls over financial reporting related to goodwill impairment testing and accounts receivable; and that as a result the required adjustments to goodwill and accounts receivable materially impacted the company’s financial statements causing the company’s stock price to be artificially inflated during the class period. The Company has responded to the complaint, considers all of these allegations without merit and is vigorously contesting the allegations.

In addition, from time to time, the Company is a party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract, property damage, civil penalties or other losses, or injunctive or declaratory relief and on rare occasions punitive damages. With respect to such lawsuits, the Company accrues reserves when it is probable a liability has been incurred and the amount of loss can be reasonably estimated. The Company does not believe any of these or any other proceedings, individually or in the aggregate, would be expected to have a material adverse effect on results of operations, cash flows, or financial condition

A legal matter was settled in the Company’s favor for $5.5 million during the first quarter of 2018. Settlement amounts were recorded in Other gain from continuing operations in the Consolidated Statement of Operations, Prepaid expenses and other (current portion of the notes receivable) and Other non-current assets (non-current portion of the notes receivable) in the Consolidated Balance Sheets. As of December 31, 2019, the current portion of the notes receivable was $0.8 million and the non-current portion was $2.5 million, net of $0.3 million of unamortized discount. Legal fees related to this matter were expensed as incurred during the respective reporting period.

As a result of charges brought in September 2015 and October 2016 by the Houston Police Department, Environmental Enforcement, two subsidiaries of the Company were indicted at the request of the Harris County, Texas District Attorney’s Office by a duly organized Grand Jury of Harris County, Texas for separate but similar violations of the Texas Water Code, allegedly arising from the handling of construction concrete at certain work sites. Specifically, in each case the Company was charged with unlawfully, intentionally or knowingly discharging a waste or pollutant and is subject to a maximum fine of $250,000. The Company considers both cases without merit. However, without admitting to fault, the Company has, in both cases, agreed to diversion agreements under which the charges were dismissed, without prosecution, upon our payment of fines. None of these allegations nor the costs of defense, taken separately or as a whole, is expected to have a material impact on the Company’s balance sheet or its liquidity.