Related Party Transactions	12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company has limited related party transactions. The most significant transactions relate to the Company’s RLW subsidiary and its executive management who own or have an ownership interest in certain real estate and other companies. RLW has historically performed construction contracts, leased properties, or has provided professional and other services for entities owned by the executive managers of RLW. The total RLW related party revenue related to construction contracts totaled $0.7 million, $4.1 million and $3.7 million in 2017, 2016 and 2015, respectively. RLW leases its main office and equipment maintenance shop for its Utah operations for an annual cost of approximately $0.8 million. The office and shop leases expire in 2022. RLW had other miscellaneous related party transactions which aggregated to $0.0 million, $0.8 million and $0.2 million in 2017, 2016 and 2015, respectively. The Company had other individually insignificant miscellaneous transactions with related parties that totaled $0.2 million, $0.6 million and $0.2 million during 2017, 2016 and 2015, respectively. In August 2015, the Company completed the sale, on a non-recourse basis, of its only long-term contract receivable pursuant to a factoring agreement with a related party. The Company received approximately $7.1 million upon the closing of this transaction and recorded a loss of approximately $1.4 million in “Other operating expense, net.” See Note 1 for more information regarding this sale. In addition, in August 2015, the Company completed the sale of a parcel of land located in Harris County, Texas to Joseph P. Harper, Sr., former President and Chief Operating Officer of the Company. Proceeds received were approximately $2.4 million. See Note 7 for more information regarding this sale. An independent member of senior management of the Company reviewed all related party sales and purchases before they were transacted.

Related Party Transactions

The Company has limited related party transactions. The most significant transactions relate to the Company’s RLW subsidiary and its executive management who own or have an ownership interest in certain real estate and other companies. RLW has historically performed construction contracts, leased properties, or has provided professional and other services for entities owned by the executive managers of RLW. The total RLW related party revenue related to construction contracts totaled $0.7 million, $4.1 million and $3.7 million in 2017, 2016 and 2015, respectively. RLW leases its main office and equipment maintenance shop for its Utah operations for an annual cost of approximately $0.8 million. The office and shop leases expire in 2022. RLW had other miscellaneous related party transactions which aggregated to $0.0 million, $0.8 million and $0.2 million in 2017, 2016 and 2015, respectively.

The Company had other individually insignificant miscellaneous transactions with related parties that totaled $0.2 million, $0.6 million and $0.2 million during 2017, 2016 and 2015, respectively.

In August 2015, the Company completed the sale, on a non-recourse basis, of its only long-term contract receivable pursuant to a factoring agreement with a related party. The Company received approximately $7.1 million upon the closing of this transaction and recorded a loss of approximately $1.4 million in “Other operating expense, net.” See Note 1 for more information regarding this sale.

In addition, in August 2015, the Company completed the sale of a parcel of land located in Harris County, Texas to Joseph P. Harper, Sr., former President and Chief Operating Officer of the Company. Proceeds received were approximately $2.4 million. See Note 7 for more information regarding this sale.

An independent member of senior management of the Company reviewed all related party sales and purchases before they were transacted.