Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2016
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Upon the completion of the acquisition of TAS, the Company entered into a lease arrangement with an entity in which an employee owns an interest. This lease is for office space and yard facilities used by the commercial concrete construction segment. Annual lease expense will be approximately $820,000, of which approximately $205,000 and $615,000 represented lease expense during the three and nine months ended September 30, 2016, respectively. GLM Concrete Solutions, LLC (“GLM”), of which the Company owns 49% of the issued and outstanding membership interests, employs certain employees that are subcontracted to TAS, a wholly owned subsidiary of the Company, for certain projects. As of the three and nine months ended September 30, 2016, payroll expense related to these subcontracted employees was $0.2 million and $0.5 million, respectively. Additionally, GLM provides certain management services to TAS, including safety, human resources and project management. As of the three and nine months ended September 30, 2016, management expense for these services was $0.1 million and $0.4 million, respectively.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.