STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2021

Stock-Based Compensation [Abstract]

Schedule of assumptions used for estimating fair value of stock awards using Monte-Carlo model

	January 1,						January 1,						January 1,
	2021						2020						2019
Closing price on date of grant	$	36.32					$	42.35					$	35.15
Dividend yield		7.38	%					6.33	%					7.51	%
Risk free interest rate at time of grant		0.04	%	to	0.18	%		1.63	%	to	1.68	%		2.45	%	to	2.57	%
Expected volatility		42.55	%	to	57.79	%		21.26	%	to	21.97	%		21.78	%	to	22.76	%

Schedule of activity in RSUs, PRSUs and PIUs

The following table summarizes the activity in restricted stock, RSUs, PRSUs, and PIUs for the years ended December 31, 2019, 2020 and 2021:

	Time-Based			Performance-Based
		Weighted -			Weighted -		Total
	Number of	Average Grant-		Number of	Average Grant-		Compensation
	Shares/Omega	Date Fair Value		Shares/Omega	Date Fair Value		Cost (1)
	OP Units	per Share		OP Units	per Share		(in millions)
Non-vested at December 31, 2018	358,873		29.44	2,169,432		13.04
Granted during 2019	160,158		35.20	822,584		14.80	$	17.82
Cancelled during 2019	(32,376)		30.38	(125,885)		14.57
Vested during 2019	(188,063)		31.01	(465,044)		15.89
Non-vested at December 31, 2019	298,592		31.44	2,401,087		13.01
Granted during 2020	158,572		39.88	1,208,537		17.11	$	27.00
Cancelled during 2020	(2,006)		42.05	(54,076)		16.52
Vested during 2020	(184,480)		29.28	(658,052)		14.85
Non-vested at December 31, 2020	270,678		37.78	2,897,496		14.24
Granted during 2021	210,429		36.52	1,232,178		18.76	$	30.80
Cancelled during 2021	(14,157)		36.58	(188,128)		18.01
Forfeited during 2021	—		—	(746,357)		14.83
Vested during 2021 (2)	(148,538)		34.30	(973,142)		10.33
Non-vested at December 31, 2021	318,412	$	38.62	2,222,047	$	17.94

(1) Total compensation cost to be recognized on the awards based on grant date fair value.

(2) PRSUs are shown as vesting in the year that the Compensation Committee determines the level of achievement of the applicable performance measures.