SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	12 Months Ended
	Jan. 28, 2022	Jan. 13, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Subsequent events
Asset acquisition, purchase price				$ 58,500
Debt draw amount				$ 1,069,797	$ 1,094,745
6.25% Series E Preferred Stock
Subsequent events
Preferred stock, dividend rate				6.25%	6.25%
5.875% Series F Preferred Stock
Subsequent events
Preferred stock, dividend rate				5.875%
Subsequent events | NCI credit facility | Secured debt
Subsequent events
Debt instrument, face amount		$ 410,000
Credit facility, maximum borrowing capacity		600,000
Debt instrument, accordion feature, increase of commitments amount		$ 190,000
Debt instrument, extension period		12 months
Debt draw amount		$ 382,000
Remaining borrowing capacity		$ 28,000
Subsequent events | NCI credit facility | Secured debt | SOFR
Subsequent events
Debt, basis spread on variable rate		2.86%
Subsequent events | 6.25% Series E Preferred Stock
Subsequent events
Cash dividends declared, preferred stock (in dollars per share)	$ 0.390625
Preferred stock, dividend rate	6.25%
Subsequent events | 5.875% Series F Preferred Stock
Subsequent events
Cash dividends declared, preferred stock (in dollars per share)	$ 0.3671875
Preferred stock, dividend rate	5.875%
Subsequent events | Series Z Preferred Units
Subsequent events
Cash dividends declared, preferred stock (in dollars per share)	$ 0.171354
Preferred stock, dividend rate	5.25%
Hotel Portfolio Acquired In January 2022 | Subsequent events | Series Z Preferred Units
Subsequent events
Preferred stock, dividend rate		5.25%
Hotels | Subsequent events | Series Z Preferred Units
Subsequent events
Asset acquisition common operating partnership units issued price (in USD per unit)		$ 25.00
Hotels | Hotel Portfolio Acquired In January 2022 | Subsequent events | Joint Venture with GIC
Subsequent events
Asset acquisition, purchase price		$ 766,000
Hotels | Hotel Portfolio Acquired In January 2022 | Subsequent events | Operating Partnership Units | Joint Venture with GIC
Subsequent events
Number of shares issued in asset acquisition (in shares)		15,314,494
Asset acquisition, share price (in USD per share)		$ 10.0853
Hotels | Hotel Portfolio Acquired In January 2022 | Subsequent events | Series Z Preferred Units | Joint Venture with GIC
Subsequent events
Number of shares issued in asset acquisition (in shares)		1,958,429
Hotels | Canopy New Orleans | Forecast | Subsequent events | Joint Venture with GIC
Subsequent events
Asset acquisition, purchase price			$ 56,000
Hotels | Canopy New Orleans | Forecast | Subsequent events | Operating Partnership Units | Joint Venture with GIC
Subsequent events
Number of shares issued in asset acquisition (in shares)			550,180
Hotels | Canopy New Orleans | Forecast | Subsequent events | Series Z Preferred Units | Joint Venture with GIC
Subsequent events
Number of shares issued in asset acquisition (in shares)			41,571