EARNINGS PER SHARE - Components of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net Income Attributable to Common Shareholders	$ 1,205,167	$ 909,053	$ 1,033,000
Weighted Average Common Shares Outstanding:
Basic (in shares)	338,836,147	321,416,086	317,370,369
Dilutive Effect of:
Share-Based Compensation Awards and Other (in shares)	738,994	762,215	623,565
Equity Forward Sale Agreement (in shares)	271,921	763,335	0
Dilutive Effect (in shares)	1,010,915	1,525,550	623,565
Diluted (in shares)	339,847,062	322,941,636	317,993,934
Basic EPS (in dollars per share)	$ 3.56	$ 2.83	$ 3.25
Diluted EPS (in dollars per share)	$ 3.55	$ 2.81	$ 3.25