Contingencies and Commitments	12 Months Ended
Dec. 31, 2018
Contingencies and Commitments [Abstract]
Contingencies and Commitments	8. Commitments and Contingencies The Company and certain of its subsidiaries are involved in litigation and various forms of dispute resolution, and are contingently liable for commitments and performance guarantees arising in the ordinary course of business. In addition, other activities inherent to the Company’s business may result in litigation or dispute resolution proceedings when there is a disagreement regarding a change in the scope of work and/or the price associated with that change. In accordance with ASC 606, the Company makes assessments of these types of disputes on a routine basis and estimates and records recovery related to these disputes at the most likely amount it expects to receive, as discussed further in Note 1(d) and Note 4. These assessments require judgments concerning matters such as litigation developments and outcomes, the anticipated outcome of negotiations and the estimated cost of resolving such disputes. In addition, because most contingencies are resolved over long periods of time, assets and liabilities may change in the future due to various factors. Management believes that, based on current information and discussions with the Company’s legal counsel, the ultimate resolution of these matters is not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows. Several matters are in the litigation and dispute resolution processes that include characteristics which management consider to be other than ordinary routine contract performance related issues. The following discussion provides a background and current status of such material matters. Long Island Expressway/Cross Island Parkway Matter The Company reconstructed the Long Island Expressway/Cross Island Parkway Interchange (“LIE” Project) for the New York State Department of Transportation (“NYSDOT”). The $130 million project was substantially complete in January 2004 and was accepted by NYSDOT as complete in February 2006. The Company incurred significant added costs in completing its work and suffered extended schedule costs due to numerous design errors, undisclosed utility conflicts, lack of coordination with local agencies and other interferences for which the Company believes NYSDOT is responsible. In March 2011, the Company opened a case with the New York State Court of Claims against NYSDOT related to the LIE Project. In May 2011, NYSDOT filed a motion to dismiss the Company’s claim on the grounds that the Company had not provided required documentation for project closeout and filing of a claim. In September 2011, the Company reached agreement on final payment with the Comptroller’s Office on behalf of NYSDOT, which resulted in an amount of $0.5 million payable to the Company and formally closed out the project allowing the Company to re-file its claim. In March 2012, the Company filed its formal Verified Claim seeking $50.7 million in damages. In May 2012, NYSDOT served its answer and asserted counterclaims in the amount of $151 million alleging fraud in the inducement and punitive damages related to alleged violations of the disadvantaged business enterprise (“DBE”) requirements for the project. The Court subsequently ruled that NYSDOT’s counterclaims may only be asserted as a defense and offset to the Company’s claims and not as affirmative claims. In November 2014, the Appellate Division First Department affirmed the dismissal of NYSDOT’s affirmative counterclaims. In June 2018, following additional summary judgment motions, the Court granted the Company’s motion to dismiss NYSDOT’s affirmative defenses, which eliminated the use of NYSDOT’s counterclaim of $151 million as a defense to the claims of the Company. In October 2018, NYSDOT filed a notice of appeal. A trial date for the appeal has not been set. Management has made an estimate of the total anticipated recovery on this project, and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time. Fontainebleau Matter Desert Mechanical, Inc. (“DMI”) and Fisk Electric Company (“Fisk”), wholly owned subsidiaries of the Company, were subcontractors on the Fontainebleau project located in Las Vegas, Nevada, a hotel/casino complex with approximately 3,800 rooms (the “Project”). In June 2009, the owners of the Project filed for bankruptcy protection, under Chapter 11 of the U.S. Bankruptcy Code, in the Southern District of Florida. DMI and Fisk recorded mechanic’s liens against the Project totaling approximately $44 million, for unpaid labor, materials and equipment it furnished to the Project. Other unaffiliated contractors, subcontractors and suppliers also recorded mechanic’s liens against the Project, subjecting the property to approximately $550 million in total lien claims by the various lien claimants who furnished labor, materials and equipment to the Project (the “Statutory Lienholders”). In June 2009, DMI filed suit against Turnberry West Construction, Inc., the general contractor, in the Eighth Judicial District Court, Clark County, Nevada, and in May 2010, the court entered an order in favor of DMI for approximately $45 million. In January 2010, the Bankruptcy Court approved the sale of the Property to Icahn Nevada Gaming Acquisition, LLC for approximately $150 million. Certain Project lenders (the “Lenders”) who had recorded deeds of trust as security interests in the property which far exceeded the sale proceeds, filed suit against the Statutory Lienholders, including DMI and Fisk, alleging that all mechanic’s liens were subordinate to the Lenders’ deeds of trust against the property. The Nevada Supreme Court ruled in October 2012 that under Nevada Law, the mechanic’s lien claims had priority over a portion of the deeds of trust, but not all of them. In October 2013, a comprehensive settlement agreement was reached by and among the Statutory Lienholders and the Lenders to divide the Sale Proceeds such that the Statutory Lienholders would receive approximately $85 million of the sale proceeds (the “Net Statutory Lienholder Proceeds”) and the Lenders would receive the balance. The Bankruptcy Court appointed a mediator to facilitate a settlement between the Statutory Lienholders as to how the Net Statutory Lienholder Proceeds would be distributed, but after engaging in numerous mediation sessions spanning several years, the parties were unable to reach a resolution. DMI filed a motion seeking permission from the Bankruptcy Court to file an action in Nevada to enforce its lien rights against the Net Statutory Lienholder Proceeds, and the motion was granted. Pursuant to that order, litigation involving all Statutory Lienholders was commenced at the end of November 2017 (the “Nevada Action”). A determination of each Statutory Lienholder’s rights against the Net Statutory Lienholder Proceeds in the Nevada Action is expected by May 2019, with a pro rata distribution of those monies to follow shortly thereafter. Management has made an estimate of the total anticipated recovery on this Project, and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time. Westgate Planet Hollywood Matter Tutor-Saliba Corporation (“TSC”), a wholly owned subsidiary of the Company, was contracted to construct a timeshare development project in Las Vegas, which was substantially completed in December 2009. The Company’s claims against the owner, Westgate Planet Hollywood Las Vegas, LLC (“WPH”), relate to unresolved owner change orders and other claims. The Company filed a lien on the project in the amount of $23.2 million and filed its complaint with the District Court, Clark County, Nevada. Several subcontractors have also recorded liens, some of which have been released by bonds and some of which have been released as a result of subsequent payment. WPH has posted a mechanic’s lien release bond for $22.3 million. WPH filed a cross-complaint alleging non-conforming and defective work for approximately $51 million, primarily related to alleged defects, misallocated costs and liquidated damages. WPH revised the amount of their counterclaims to approximately $45 million. Following multiple post-trial motions, final judgment was entered in this matter on March 20, 2014. TSC was awarded total judgment in the amount of $19.7 million on its breach of contract claim, which includes an award of interest up through the date of judgment, plus attorney’s fees and costs. WPH was awarded total judgment in the amount of $3.1 million on its construction defect claims, which includes interest up through the date of judgment. WPH and its Sureties filed a notice of appeal. TSC filed a notice of appeal on the defect award. In July 2014, the District Court ordered WPH to post an additional supersedeas bond on appeal, in the amount of $1.7 million, in addition to the lien release bond of $22.3 million, which increases the security up to $24.0 million. In May 2017, the Nevada Supreme Court issued its ruling on the appeal by WPH and its Sureties. With only minor adjustments, the Nevada Supreme Court affirmed the District Court’s judgment, and following further proceedings in the District Court, the anticipated final recovery to the Company is estimated to exceed $20 million, including interest and recovery of certain attorneys’ fees and costs of which the Company collected more than $16 million in 2017. In December 2017 and in January 2018, the District Court issued several post-appeal orders confirming its previous rulings. Some of those matters have been appealed and are expected to be resolved in the first half of 2019. Once resolved, TSC will seek an order from the District Court seeking the remaining $4 million in interest and fees associated with the matter. The Company does not expect the ultimate resolution of this matter to have a material effect on its consolidated financial statements. Management has made an estimate of the total anticipated recovery on this project and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time. Five Star Electric Matter In the third quarter of 2015, Five Star Electric Corp. (“Five Star”), a wholly owned subsidiary of the Company that was acquired in 2011, entered into a tolling agreement (which has since expired) related to an ongoing investigation being conducted by the United States Attorney’s Office for the Eastern District of New York (“USAO EDNY”). Five Star has been cooperating with the USAO EDNY since late June 2014, when it was first made aware of the investigation, and has provided information requested by the government related to its use of certain minority-owned, women-owned, small and disadvantaged business enterprises and certain of Five Star’s employee compensation, benefit and tax practices. As of December 31, 2018, the Company cannot predict the ultimate outcome of the investigation and cannot reasonably estimate the potential loss or range of loss that Five Star or the Company may incur or the impact of the results of the investigation on Five Star or the Company. Alaskan Way Viaduct Matter In January 2011, Seattle Tunnel Partners (“STP”), a joint venture between Dragados USA, Inc. and the Company, entered into a design-build contract with the Washington State Department of Transportation (“WSDOT”) for the construction of a large diameter bored tunnel in downtown Seattle, King County, Washington to replace the Alaskan Way Viaduct, also known as State Route 99. The construction of the large diameter bored tunnel required the use of a tunnel boring machine (“TBM”). In December 2013, the TBM struck a steel pipe, installed by WSDOT as a well casing for an exploratory well. The TBM was damaged and was required to be shut down for repair. STP has asserted that the steel pipe casing was a differing site condition that WSDOT failed to properly disclose. The Disputes Review Board mandated by the contract to hear disputes issued a decision finding the steel casing was a Type I differing site condition. WSDOT has not accepted that finding. The TBM was insured under a Builder’s Risk Insurance Policy (the “Policy”) with Great Lakes Reinsurance (UK) PLC and a consortium of other insurers (the “Insurers”). STP submitted the claims to the Insurers and requested interim payments under the Policy. The Insurers refused to pay and denied coverage. In June 2015, STP filed a lawsuit in the King County Superior Court, State of Washington (“Washington Superior Court”) seeking declaratory relief concerning contract interpretation, as well as damages as a result of the Insurers’ breach of their obligations under the terms of the Policy. WSDOT is deemed a plaintiff since WSDOT is an insured under the Policy and had filed its own claim for damages. Hitachi Zosen (“Hitachi”), the manufacturer of the TBM, has also joined the case as a plaintiff for costs incurred to repair the damages to the TBM. In September 2018, rulings received on pre-trial motions effectively limited potential recovery under the Policy for STP, WSDOT and Hitachi. However, on December 19, 2018, the Court of Appeal granted the Company’s request for a discretionary appeal of those rulings. The appeal is expected to be heard in the second half of 2019. To the extent we are unable to recover damages under the Policy, we can still seek recovery against WSDOT and Hitachi. In March 2016, WSDOT filed a complaint against STP in Thurston County Superior Court for breach of contract alleging STP’s delays and failure to perform and declaratory relief concerning contract interpretation. STP filed its answer to WSDOT’s complaint and filed a counterclaim against WSDOT and Hitachi. Trial is scheduled for October 2019. As of December 31, 2018, the Company has concluded that the potential for a material adverse financial impact due to the Insurers’ denial of coverage and WSDOT’s legal actions is neither probable nor remote, and the potential loss or range of loss is not reasonably estimable. With respect to STP’s claims against the Insurers, WSDOT and Hitachi, management has included an estimate of the total anticipated recovery, concluded to be both probable and reliably estimable, in receivables or costs and estimated earnings in excess of billings recorded to date. To the extent new facts become known or the final recoveries vary from the estimate, the impact of the change will be reflected in the financial statements at that time.

8. Commitments and Contingencies

The Company and certain of its subsidiaries are involved in litigation and various forms of dispute resolution, and are contingently liable for commitments and performance guarantees arising in the ordinary course of business. In addition, other activities inherent to the Company’s business may result in litigation or dispute resolution proceedings when there is a disagreement regarding a change in the scope of work and/or the price associated with that change. In accordance with ASC 606, the Company makes assessments of these types of disputes on a routine basis and estimates and records recovery related to these disputes at the most likely amount it expects to receive, as discussed further in Note 1(d) and Note 4. These assessments require judgments concerning matters such as litigation developments and outcomes, the anticipated outcome of negotiations and the estimated cost of resolving such disputes. In addition, because most contingencies are resolved over long periods of time, assets and liabilities may change in the future due to various factors. Management believes that, based on current information and discussions with the Company’s legal counsel, the ultimate resolution of these matters is not expected to have a material adverse effect on the Company’s financial position, results of operations or cash flows.

Several matters are in the litigation and dispute resolution processes that include characteristics which management consider to be other than ordinary routine contract performance related issues. The following discussion provides a background and current status of such material matters.

Long Island Expressway/Cross Island Parkway Matter

The Company reconstructed the Long Island Expressway/Cross Island Parkway Interchange (“LIE” Project) for the New York State Department of Transportation (“NYSDOT”). The $130 million project was substantially complete in January 2004 and was accepted by NYSDOT as complete in February 2006. The Company incurred significant added costs in completing its work and suffered extended schedule costs due to numerous design errors, undisclosed utility conflicts, lack of coordination with local agencies and other interferences for which the Company believes NYSDOT is responsible.

In March 2011, the Company opened a case with the New York State Court of Claims against NYSDOT related to the LIE Project. In May 2011, NYSDOT filed a motion to dismiss the Company’s claim on the grounds that the Company had not provided required documentation for project closeout and filing of a claim. In September 2011, the Company reached agreement on final payment with the Comptroller’s Office on behalf of NYSDOT, which resulted in an amount of $0.5 million payable to the Company and formally closed out the project allowing the Company to re-file its claim. In March 2012, the Company filed its formal Verified Claim seeking $50.7 million in damages. In May 2012, NYSDOT served its answer and asserted counterclaims in the amount of $151 million alleging fraud in the inducement and punitive damages related to alleged violations of the disadvantaged business enterprise (“DBE”) requirements for the project. The Court subsequently ruled that NYSDOT’s counterclaims may only be asserted as a defense and offset to the Company’s claims and not as affirmative claims. In November 2014, the Appellate Division First Department affirmed the dismissal of NYSDOT’s affirmative counterclaims. In June 2018, following additional summary judgment motions, the Court granted the Company’s motion to dismiss NYSDOT’s affirmative defenses, which eliminated the use of NYSDOT’s counterclaim of $151 million as a defense to the claims of the Company. In October 2018, NYSDOT filed a notice of appeal. A trial date for the appeal has not been set.

Management has made an estimate of the total anticipated recovery on this project, and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time.

Fontainebleau Matter

Desert Mechanical, Inc. (“DMI”) and Fisk Electric Company (“Fisk”), wholly owned subsidiaries of the Company, were subcontractors on the Fontainebleau project located in Las Vegas, Nevada, a hotel/casino complex with approximately 3,800 rooms (the “Project”). In June 2009, the owners of the Project filed for bankruptcy protection, under Chapter 11 of the U.S. Bankruptcy Code, in the Southern District of Florida.

DMI and Fisk recorded mechanic’s liens against the Project totaling approximately $44 million, for unpaid labor, materials and equipment it furnished to the Project. Other unaffiliated contractors, subcontractors and suppliers also recorded mechanic’s liens against the Project, subjecting the property to approximately $550 million in total lien claims by the various lien claimants who furnished labor, materials and equipment to the Project (the “Statutory Lienholders”). In June 2009, DMI filed suit against Turnberry West Construction, Inc., the general contractor, in the Eighth Judicial District Court, Clark County, Nevada, and in May 2010, the court entered an order in favor of DMI for approximately $45 million.

In January 2010, the Bankruptcy Court approved the sale of the Property to Icahn Nevada Gaming Acquisition, LLC for approximately $150 million. Certain Project lenders (the “Lenders”) who had recorded deeds of trust as security interests in the property which far exceeded the sale proceeds, filed suit against the Statutory Lienholders, including DMI and Fisk, alleging that all mechanic’s liens were subordinate to the Lenders’ deeds of trust against the property. The Nevada Supreme Court ruled in October 2012 that under Nevada Law, the mechanic’s lien claims had priority over a portion of the deeds of trust, but not all of them.

In October 2013, a comprehensive settlement agreement was reached by and among the Statutory Lienholders and the Lenders to divide the Sale Proceeds such that the Statutory Lienholders would receive approximately $85 million of the sale proceeds (the “Net Statutory Lienholder Proceeds”) and the Lenders would receive the balance. The Bankruptcy Court appointed a mediator to facilitate a settlement between the Statutory Lienholders as to how the Net Statutory Lienholder Proceeds would be distributed, but after engaging in numerous mediation sessions spanning several years, the parties were unable to reach a resolution. DMI filed a motion seeking permission from the Bankruptcy Court to file an action in Nevada to enforce its lien rights against the Net Statutory Lienholder Proceeds, and the motion was granted. Pursuant to that order, litigation involving all Statutory Lienholders was commenced at the end of November 2017 (the “Nevada Action”).

A determination of each Statutory Lienholder’s rights against the Net Statutory Lienholder Proceeds in the Nevada Action is expected by May 2019, with a pro rata distribution of those monies to follow shortly thereafter.

Management has made an estimate of the total anticipated recovery on this Project, and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time.

Westgate Planet Hollywood Matter

Tutor-Saliba Corporation (“TSC”), a wholly owned subsidiary of the Company, was contracted to construct a timeshare development project in Las Vegas, which was substantially completed in December 2009. The Company’s claims against the owner, Westgate Planet Hollywood Las Vegas, LLC (“WPH”), relate to unresolved owner change orders and other claims. The Company filed a lien on the project in the amount of $23.2 million and filed its complaint with the District Court, Clark County, Nevada. Several subcontractors have also recorded liens, some of which have been released by bonds and some of which have been released as a result of subsequent payment. WPH has posted a mechanic’s lien release bond for $22.3 million.

WPH filed a cross-complaint alleging non-conforming and defective work for approximately $51 million, primarily related to alleged defects, misallocated costs and liquidated damages. WPH revised the amount of their counterclaims to approximately $45 million.

Following multiple post-trial motions, final judgment was entered in this matter on March 20, 2014. TSC was awarded total judgment in the amount of $19.7 million on its breach of contract claim, which includes an award of interest up through the date of judgment, plus attorney’s fees and costs. WPH was awarded total judgment in the amount of $3.1 million on its construction defect claims, which includes interest up through the date of judgment. WPH and its Sureties filed a notice of appeal. TSC filed a notice of appeal on the defect award. In July 2014, the District Court ordered WPH to post an additional supersedeas bond on appeal, in the amount of $1.7 million, in addition to the lien release bond of $22.3 million, which increases the security up to $24.0 million. In May 2017, the Nevada Supreme Court issued its ruling on the appeal by WPH and its Sureties. With only minor adjustments, the Nevada Supreme Court affirmed the District Court’s judgment, and following further proceedings in the District Court, the anticipated final recovery to the Company is estimated to exceed $20 million, including interest and recovery of certain attorneys’ fees and costs of which the Company collected more than $16 million in 2017. In December 2017 and in January 2018, the District Court issued several post-appeal orders confirming its previous rulings. Some of those matters have been appealed and are expected to be resolved in the first half of 2019. Once resolved, TSC will seek an order from the District Court seeking the remaining $4 million in interest and fees associated with the matter.

The Company does not expect the ultimate resolution of this matter to have a material effect on its consolidated financial statements. Management has made an estimate of the total anticipated recovery on this project and such estimate is included in revenue recorded to date. To the extent new facts become known or the final recovery included in the claim settlement varies from the estimate, the impact of the change will be reflected in the consolidated financial statements at that time.

Five Star Electric Matter

In the third quarter of 2015, Five Star Electric Corp. (“Five Star”), a wholly owned subsidiary of the Company that was acquired in 2011, entered into a tolling agreement (which has since expired) related to an ongoing investigation being conducted by the United States Attorney’s Office for the Eastern District of New York (“USAO EDNY”). Five Star has been cooperating with the USAO EDNY since late June 2014, when it was first made aware of the investigation, and has provided information requested by the government related to its use of certain minority-owned, women-owned, small and disadvantaged business enterprises and certain of Five Star’s employee compensation, benefit and tax practices.

As of December 31, 2018, the Company cannot predict the ultimate outcome of the investigation and cannot reasonably estimate the potential loss or range of loss that Five Star or the Company may incur or the impact of the results of the investigation on Five Star or the Company.

Alaskan Way Viaduct Matter

In January 2011, Seattle Tunnel Partners (“STP”), a joint venture between Dragados USA, Inc. and the Company, entered into a design-build contract with the Washington State Department of Transportation (“WSDOT”) for the construction of a large diameter bored tunnel in downtown Seattle, King County, Washington to replace the Alaskan Way Viaduct, also known as State Route 99.

The construction of the large diameter bored tunnel required the use of a tunnel boring machine (“TBM”). In December 2013, the TBM struck a steel pipe, installed by WSDOT as a well casing for an exploratory well. The TBM was damaged and was required to be shut down for repair. STP has asserted that the steel pipe casing was a differing site condition that WSDOT failed to properly disclose. The Disputes Review Board mandated by the contract to hear disputes issued a decision finding the steel casing was a Type I differing site condition. WSDOT has not accepted that finding.

The TBM was insured under a Builder’s Risk Insurance Policy (the “Policy”) with Great Lakes Reinsurance (UK) PLC and a consortium of other insurers (the “Insurers”). STP submitted the claims to the Insurers and requested interim payments under the Policy. The Insurers refused to pay and denied coverage. In June 2015, STP filed a lawsuit in the King County Superior Court, State of Washington (“Washington Superior Court”) seeking declaratory relief concerning contract interpretation, as well as damages as a result of the Insurers’ breach of their obligations under the terms of the Policy. WSDOT is deemed a plaintiff since WSDOT is an insured under the Policy and had filed its own claim for damages. Hitachi Zosen (“Hitachi”), the manufacturer of the TBM, has also joined the case as a plaintiff for costs incurred to repair the damages to the TBM. In September 2018, rulings received on pre-trial motions effectively limited potential recovery under the Policy for STP, WSDOT and Hitachi. However, on December 19, 2018, the Court of Appeal granted the Company’s request for a discretionary appeal of those rulings. The appeal is expected to be heard in the second half of 2019. To the extent we are unable to recover damages under the Policy, we can still seek recovery against WSDOT and Hitachi.

In March 2016, WSDOT filed a complaint against STP in Thurston County Superior Court for breach of contract alleging STP’s delays and failure to perform and declaratory relief concerning contract interpretation. STP filed its answer to WSDOT’s complaint and filed a counterclaim against WSDOT and Hitachi. Trial is scheduled for October 2019.

As of December 31, 2018, the Company has concluded that the potential for a material adverse financial impact due to the Insurers’ denial of coverage and WSDOT’s legal actions is neither probable nor remote, and the potential loss or range of loss is not reasonably estimable. With respect to STP’s claims against the Insurers, WSDOT and Hitachi, management has included an estimate of the total anticipated recovery, concluded to be both probable and reliably estimable, in receivables or costs and estimated earnings in excess of billings recorded to date. To the extent new facts become known or the final recoveries vary from the estimate, the impact of the change will be reflected in the financial statements at that time.