DEBT (Credit Facilities Narrative) (Details)			12 Months Ended
	Feb. 17, 2021 USD ($)	Apr. 02, 2020 USD ($)	Dec. 31, 2021 USD ($) agreement	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2022
Line of Credit Facility [Abstract]
Debt extinguishment expense	$ 2,977,000
Loss on debt extinguishment			$ 3,069,000	$ 0	$ 280,000
Debt modification expense			90,000
Unsecured term loan			$ 496,085,000	$ 681,744,000
Line of credit facility covenant maximum leverage ratio (percent)			60.00%
Line of credit facility covenant maximum secured debt leverage ratio (percent)			45.00%
Line of credit facility covenant minimum tangible net worth		$ 1,119,500,000
Line of credit facility covenant percentage of net cash proceeds of issuance and sales of equity interests (percent)		75.00%
Line of credit facility covenant maximum annual distributions (percent)		95.00%
Forecast
Line of Credit Facility [Abstract]
Line of credit facility covenant maximum leverage ratio (percent)						65.00%
Revolving Credit Facility
Line of Credit Facility [Abstract]
Line of credit, weighted average interest rate (percent)			3.69%	4.07%	4.11%
Maximum
Line of Credit Facility [Abstract]
Line of credit facility covenant fixed charge coverage ratio			1.50
Maximum | Forecast
Line of Credit Facility [Abstract]
Line of credit facility covenant fixed charge coverage ratio						1.20
Credit Agreement
Line of Credit Facility [Abstract]
Loss on debt extinguishment	635,000
Debt modification expense	2,342,000
Secured Term Loan:
Line of Credit Facility [Abstract]
Number of unsecured credit agreements | agreement			3
Line of credit, current borrowing capacity			$ 747,481,000
Unsecured term loan			496,085,000	$ 681,744,000
Line of credit, additional borrowing	174,729,000
Liquid asset requirement	$ 30,000
Secured Term Loan: | Senior Credit Agreement
Line of Credit Facility [Abstract]
Line of credit, current borrowing capacity			442,404,000
Secured Term Loan: | $250 Million Term Loan (First Term Loan)
Line of Credit Facility [Abstract]
Debt instrument, face amount			192,404,000
Unsecured term loan			192,404,000	202,158,000
Secured Term Loan: | $300 Million Senior Term Loan Agreement (Second Term Loan)
Line of Credit Facility [Abstract]
Unsecured term loan			278,846,000	292,983,000
Secured Term Loan: | $200 Million Senior Term Loan Agreement (Third Term Loan)
Line of Credit Facility [Abstract]
Debt instrument, face amount			26,231,000
Unsecured term loan			26,231,000	$ 189,365,000
Line of Credit | Forecast
Line of Credit Facility [Abstract]
Line of credit facility covenant maximum secured debt leverage ratio (percent)						60.00%
Line of Credit | $250 Million Senior Revolving Line Of Credit (Line of Credit)
Line of Credit Facility [Abstract]
Line of credit, current borrowing capacity			$ 250,000,000