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| Business Combination Disclosure [Text Block] | Note  4.Business Combinations  May 2019 Acquisition of Capital Pumping On   May 15, 2019, the Company acquired Capital Pumping, LP and its affiliates (“Capital”), a concrete pumping provider based in Texas for a purchase price of $129.2million, which was paid using proceeds from the Company’s public offering of common stock and additional borrowings on its term loan facility. This acquisition qualified as a business combination under ASC 805.Accordingly, the Company recorded all assets acquired and liabilities assumed at their acquisition-date fair values, with any excess recognized as goodwill. Goodwill recorded from the transaction represents expected synergies from combining operations and the assembled workforce. The following table represents the final allocation of consideration to the assets acquired and liabilities assumed at their estimated acquisition-date fair values with any measurement-period adjustments included: 
 Identifiable intangible assets acquired consist of customer relationships of  $40.0million and a trade name valued at $5.5million. The customer relationships were valued using the multi-period excess earnings method. The Company determined the useful life of the customer relationships to be 15years. The trade name was valued using the relief-from-royalty method and the Company determined the trade name associated with Capital to be indefinite.  December 2018 Acquisition of CPH On   December 6, 2018, the Company consummated the Business Combination. This acquisition qualified as a business combination under ASC 805.Accordingly, the Company recorded all assets acquired and liabilities assumed at their acquisition-date fair values, with any excess recognized as goodwill. Goodwill recorded from the transaction represents the value provided by the Company’s leading market share in a highly-fragmented industry. The following table represents the final allocation of consideration to the assets acquired and liabilities assumed at their estimated acquisition-date fair values with any measurement-period adjustments included (see paragraph below for any measurement-period adjustments included): 
 Note: Cash in table above is net of  $1.0million in cash acquired Identifiable intangible assets acquired consist of customer relationships of  $152.7million and trade names of $55.4million. The customer relationships were valued using the multi-period excess earnings method. The Company determined the useful life of the customer relationships to be 15years. The trade names were valued using the relief-from-royalty method. The Company determined the useful life of the trade name associated with Camfaud to be 10years. The Company determined the trade names associated with Brundage-Bone and Eco-Pan to be indefinite. During the Successor period from   December 6, 2018 through  October 31, 2019 $3.4 notconsidered material to the Company's previously issued financial statements. CPH incurred transaction costs of  $14.2million and debt extinguishment costs of $16.4million independently prior to the Business Combination. Additional costs consisting of stock option and other compensation related expenses were recorded in connection with the Business Combination. These costs were solely contingent upon the completion of the business combination and did  notinclude any future service requirements. As such, these costs will be presented “on the line” and are notreflected in either Predecessor or Successor financial statements.  “On the line” describes those expenses triggered by the consummation of a business combination that were incurred by the acquiree, i.e. CPH, that are notrecognized in the Statement of Operations of either the Predecessor or Successor as they are notdirectly attributable to either period but instead were contingent on the Business Combination. In conjunction with the Business Combination, there were  $15.6million of transaction bonuses and, as a result of a change in control provision for stock-based awards, certain unvested stock-based awards immediately vested, resulting in the recognition of compensation expense of approximately $0.6million. These expenses were notreflected in either the Predecessor or Successor consolidated statement of operations and comprehensive loss periods. Unaudited Pro Forma Financial Information The following unaudited pro forma financial information presents the combined results of operations for the Company and gives effect to the CPH and Capital business combinations discussed above as if they had occurred on   November 1, 2018. The unaudited pro forma financial information is presented for illustrative purposes only and is notnecessarily indicative of the results of operations that would have been realized if the CPH and Capital business combinations had been completed on  November 1, 2018, nor does it purport to project the results of operations of the combined company in future periods. The unaudited pro forma financial information does notgive effect to any anticipated integration costs related to the acquired company. The unaudited pro forma financial information is as follows: 
 
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