EARNINGS PER SHARE (Antidilutive) (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOG
Earnings per common unit
Antidilutive securities excluded from calculation of earnings per common unit (in units)	116,328,089	116,996,031
Options
Earnings per common unit
Antidilutive securities excluded from calculation of earnings per common unit (in units)	12,859,532	0
Restricted units
Earnings per common unit
Antidilutive securities excluded from calculation of earnings per common unit (in units)	16,377,716	119