DEBT - Schedule of debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt, gross	$ 1,496,640	$ 1,081,315
Unamortized debt issuance costs	(14,745)	(11,518)
Debt, net of debt issuance costs	1,481,895	1,069,797
Convertible notes
Debt Instrument [Line Items]
Debt, gross	287,500	287,500
Mortgage loans
Debt Instrument [Line Items]
Debt, gross	168,640	163,315
Revolving debt | Unsecured debt
Debt Instrument [Line Items]
Debt, gross	68,500	68,500
Term loans | Unsecured debt
Debt Instrument [Line Items]
Debt, gross	$ 972,000	$ 562,000