COMMITMENTS AND CONTINGENCIES	6 Months Ended
Jun. 30, 2013
Commitments And Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	9. COMMITMENTS AND CONTINGENCIES Commitments—In 2012, we executed a contract to acquire six new heavy aircraft for our Oil and Gas segment. As of June 30, 2013, three aircraft remained scheduled for delivery for the third quarter of 2013, with an aggregate acquisition cost of $80.1 million. Subsequent to June 30, 2013, we entered into a contract to purchase six new light helicopters for our Air Medical segment. The aggregate acquisition cost of the aircraft is $15.1 million and delivery is scheduled for the third and fourth quarters of 2013. Total aircraft deposits of $9.2 million were included in Other Assets as of June 30, 2013. This amount represents deposits for aircraft purchase contracts. As of June 30, 2013, we had options to purchase aircraft under lease becoming exercisable in 2013 through 2019. The aggregate option purchase prices are $30.8 million in 2013, $114.4 million in 2014, $33.5 million in 2016, $89.8 million in 2017, and $19.5 million in 2019. Subject to market conditions and available cash, we intend to exercise these options as they become exercisable. Environmental Matters – We have recorded an aggregate estimated probable liability of $0.2 million as of June 30, 2013 for environmental response costs. The Company has conducted environmental surveys of its former Lafayette facility located at the Lafayette Regional Airport, which it vacated in 2001, and has determined that limited soil and groundwater contamination exists at the facility. The Company has installed groundwater monitoring wells at the facility and periodically monitors and reports on the contamination to the Louisiana Department of Environmental Quality (“LDEQ”). The Company previously submitted a Risk Evaluation Corrective Action Plan Standard Site Assessment Report to the LDEQ fully delineating the extent and type of contamination and updated the Report to include additional analytical data in April 2006. LDEQ reviewed the Assessment Report and requested a Corrective Action Plan from the Company. LDEQ approved the Corrective Action Plan (“CAP”) for the remediation of the former PHI Plant I location on August 23, 2010. All Louisiana Department of Natural Resources approvals were received and the project began on May 16, 2011. Initial work took three weeks. Groundwater sampling that was performed during December 2011, March 2012, and September 2012 was evaluated to determine the effectiveness of remediation performed to date and whether additional remediation will be necessary. Based upon that review, a second round of sampling in one of the two source areas was performed during the fourth quarter 2012. Total cost for this project is anticipated to remain substantially below the current environmental reserve. Based upon the May 2003 Site Assessment Report, the April 2006 update, ongoing monitoring, and the August 2010 CAP, the Company believes the ultimate remediation costs for the former Lafayette facility will not be material to its consolidated financial position, results of operations, or cash flows. Legal Matters – The Company is named as a defendant in various legal actions that have arisen in the ordinary course of business and have not been finally adjudicated. In the opinion of management, the amount of the liability with respect to these actions will not have a material effect on the Company’s consolidated financial position, results of operations, or cash flows. On December 31, 2009, the Office and Professional Employees International Union (“OPEIU”), the union representing the Company’s domestic pilots, sued the Company in United States District Court for the Western District of Louisiana asserting that its acceptance in 2009 of the terms and conditions of employment for the Company’s pilots initially implemented by the Company prior to a 2006 strike has created a binding collective bargaining agreement and that the Company has inappropriately made unilateral revisions to those terms, including failing to pay a retention bonus. The Court administratively stayed this case pending the completion of appellate briefing in two other litigations between the parties that have since been resolved in the Company’s favor. By Order dated April 26, 2012, the District Court invited PHI to file a motion to dismiss the OPEIU's claims. PHI filed such a motion to dismiss the OPEIU’s claims on May 11, 2012, and the Court dismissed all claims against PHI without prejudice for lack of jurisdiction to award the equitable relief sought in the complaint, entering a final judgment on October 15, 2012. The OPEIU has appealed this decision to the U.S Court of Appeals, Fifth Circuit. The appeal is fully briefed, and oral argument is scheduled to occur on August 7, 2013. PHI expects a decision between 20 and 60 days following oral argument. Operating Leases – We lease certain aircraft, facilities, and equipment used in our operations. The related lease agreements, which include both non-cancelable and month-to-month terms, generally provide for fixed monthly rentals, and certain real estate leases also include renewal options. We generally pay all insurance, taxes, and maintenance expenses associated with these leases. All aircraft leases contain purchase options exercisable at certain dates in the lease agreements. At June 30, 2013, we had approximately $245.7 million in aggregate commitments under operating leases of which approximately $22.8 million is payable through December 31, 2013. The total lease commitments include $226.5 million for aircraft and $19.2 million for facility lease commitments.

9. COMMITMENTS AND CONTINGENCIES

Commitments—In 2012, we executed a contract to acquire six new heavy aircraft for our Oil and Gas segment. As of June 30, 2013, three aircraft remained scheduled for delivery for the third quarter of 2013, with an aggregate acquisition cost of $80.1 million. Subsequent to June 30, 2013, we entered into a contract to purchase six new light helicopters for our Air Medical segment. The aggregate acquisition cost of the aircraft is $15.1 million and delivery is scheduled for the third and fourth quarters of 2013.

Total aircraft deposits of $9.2 million were included in Other Assets as of June 30, 2013. This amount represents deposits for aircraft purchase contracts.

As of June 30, 2013, we had options to purchase aircraft under lease becoming exercisable in 2013 through 2019. The aggregate option purchase prices are $30.8 million in 2013, $114.4 million in 2014, $33.5 million in 2016, $89.8 million in 2017, and $19.5 million in 2019. Subject to market conditions and available cash, we intend to exercise these options as they become exercisable.

Environmental Matters – We have recorded an aggregate estimated probable liability of $0.2 million as of June 30, 2013 for environmental response costs. The Company has conducted environmental surveys of its former Lafayette facility located at the Lafayette Regional Airport, which it vacated in 2001, and has determined that limited soil and groundwater contamination exists at the facility. The Company has installed groundwater monitoring wells at the facility and periodically monitors and reports on the contamination to the Louisiana Department of Environmental Quality (“LDEQ”). The Company previously submitted a Risk Evaluation Corrective Action Plan Standard Site Assessment Report to the LDEQ fully delineating the extent and type of contamination and updated the Report to include additional analytical data in April 2006. LDEQ reviewed the Assessment Report and requested a Corrective Action Plan from the Company. LDEQ approved the Corrective Action Plan (“CAP”) for the remediation of the former PHI Plant I location on August 23, 2010. All Louisiana Department of Natural Resources approvals were received and the project began on May 16, 2011. Initial work took three weeks. Groundwater sampling that was performed during December 2011, March 2012, and September 2012 was evaluated to determine the effectiveness of remediation performed to date and whether additional remediation will be necessary. Based upon that review, a second round of sampling in one of the two source areas was performed during the fourth quarter 2012. Total cost for this project is anticipated to remain substantially below the current environmental reserve. Based upon the May 2003 Site Assessment Report, the April 2006 update, ongoing monitoring, and the August 2010 CAP, the Company believes the ultimate remediation costs for the former Lafayette facility will not be material to its consolidated financial position, results of operations, or cash flows.

Legal Matters – The Company is named as a defendant in various legal actions that have arisen in the ordinary course of business and have not been finally adjudicated. In the opinion of management, the amount of the liability with respect to these actions will not have a material effect on the Company’s consolidated financial position, results of operations, or cash flows.

On December 31, 2009, the Office and Professional Employees International Union (“OPEIU”), the union representing the Company’s domestic pilots, sued the Company in United States District Court for the Western District of Louisiana asserting that its acceptance in 2009 of the terms and conditions of employment for the Company’s pilots initially implemented by the Company prior to a 2006 strike has created a binding collective bargaining agreement and that the Company has inappropriately made unilateral revisions to those terms, including failing to pay a retention bonus. The Court administratively stayed this case pending the completion of appellate briefing in two other litigations between the parties that have since been resolved in the Company’s favor. By Order dated April 26, 2012, the District Court invited PHI to file a motion to dismiss the OPEIU's claims. PHI filed such a motion to dismiss the OPEIU’s claims on May 11, 2012, and the Court dismissed all claims against PHI

without prejudice for lack of jurisdiction to award the equitable relief sought in the complaint, entering a final judgment on October 15, 2012. The OPEIU has appealed this decision to the U.S Court of Appeals, Fifth Circuit. The appeal is fully briefed, and oral argument is scheduled to occur on August 7, 2013. PHI expects a decision between 20 and 60 days following oral argument.

Operating Leases – We lease certain aircraft, facilities, and equipment used in our operations. The related lease agreements, which include both non-cancelable and month-to-month terms, generally provide for fixed monthly rentals, and certain real estate leases also include renewal options. We generally pay all insurance, taxes, and maintenance expenses associated with these leases. All aircraft leases contain purchase options exercisable at certain dates in the lease agreements.

At June 30, 2013, we had approximately $245.7 million in aggregate commitments under operating leases of which approximately $22.8 million is payable through December 31, 2013. The total lease commitments include $226.5 million for aircraft and $19.2 million for facility lease commitments.