AG真人平台AG真人试玩

Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATIONS - Summary Of Asset Retirement Obligations (Details)

v3.20.2
ASSET RETIREMENT OBLIGATIONS - Summary Of Asset Retirement Obligations (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Environmental Exit Cost [Line Items]
Asset Retirement Obligation $ 186.4 $ 179.5 $ 165.3 $ 172.4
Asset Retirement Obligation, Current 4.4 2.1
Long-term asset retirement obligations 182.0 163.2
Increase from AK AG真人平台AG真人试玩 acquisition 16.7 $ 0.0
Operating Segments [Member]
Environmental Exit Cost [Line Items]
Asset Retirement Obligation $ 33.7 $ 22.0