DEBT (Schedule of Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument
Deferred Financing Costs Amortization	$ 1,119	$ 1,104	$ 3,499	$ 2,299
Other	94	66	271	476
Total Interest Expense	14,589	13,350	43,000	39,838
Line of Credit
Debt Instrument
Interest expense related to debt instrument	3,735	4,736	11,856	17,139
Interest Rate Swap | Line of Credit
Debt Instrument
Interest expense related to debt instrument	2,103	3,543	6,944	7,762
Mortgages
Debt Instrument
Interest expense related to debt instrument	2,533	2,846	7,947	9,362
Mortgages | Hersha Statutory Trust I and Hersha Statutory Trust II
Debt Instrument
Interest expense related to debt instrument	4,386	451	10,634	1,611
Mortgages | Interest Rate Swap
Debt Instrument
Interest expense related to debt instrument	$ 619	$ 604	$ 1,849	$ 1,189