INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Summary of Unconsolidated Joint Ventures Balance Sheet) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Assets
Investment in Hotel Properties, Net	$ 1,699,230		$ 1,699,230		$ 1,784,838
Other Assets	20,395		20,395		15,494
Total Assets	1,857,734		1,857,734		1,980,988
Liabilities and Equity
Mortgages and Notes Payable	304,426		304,426		330,848
Equity:
Hersha Hospitality Trust	586,015		586,015		623,003
Joint Venture Partner(s)	48,672		48,672		49,246
Accumulated Other Comprehensive Loss	(11,024)		(11,024)		(19,275)
Liabilities and Equity	1,857,734		1,857,734		1,980,988
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Assets
Investment in Hotel Properties, Net	65,956		65,956		581,452
Other Assets	14,126		14,126		32,048
Total Assets	80,082		80,082		613,500
Liabilities and Equity
Mortgages and Notes Payable	65,457		65,457		452,284
Other Liabilities	14,939		14,939		42,197
Equity:
Hersha Hospitality Trust	4,099		4,099		5,699
Joint Venture Partner(s)	(4,413)		(4,413)		113,452
Accumulated Other Comprehensive Loss	0		0		(132)
Total Equity	(314)		(314)		119,019
Liabilities and Equity	80,082		80,082		$ 613,500
Loss on Dissolution of Joint Venture	$ 0	$ 0	$ (112,429)	$ 0