Other (Notes)	9 Months Ended
Sep. 30, 2016
Asset Retirement Obligation Disclosure [Abstract]
Other	OTHER For the nine months ended September 30, 2016, we capitalized $1.4 million of project feasibility cost associated with one project, which had been expensed in prior periods in Other expense, net, upon determining that the project was probable of development. Our Asset retirement obligations in Total other long-term liabilities on our Condensed Consolidated Balance Sheet reflects a $77.2 million decrease for 2016 compared to December 31, 2015. This decrease is primarily due to changes in estimates of existing obligations as a result of our annual review process. The annual review process considers various factors including inflation rates, current estimates for removal cost, discount rates, and the estimated remaining life of assets.

Other (Notes)

9 Months Ended

Sep. 30, 2016

Asset Retirement Obligation Disclosure [Abstract]

OTHER

For the nine months ended September 30, 2016, we capitalized $1.4 million of project feasibility cost associated with one project, which had been expensed in prior periods in Other expense, net, upon determining that the project was probable of development.

Our Asset retirement obligations in Total other long-term liabilities on our Condensed Consolidated Balance Sheet reflects a $77.2 million decrease for 2016 compared to December 31, 2015. This decrease is primarily due to changes in estimates of existing obligations as a result of our annual review process. The annual review process considers various factors including inflation rates, current estimates for removal cost, discount rates, and the estimated remaining life of assets.