EARNINGS PER SHARE (Reconciliation Of Earnings Per Share) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Basic and Diluted
Net Loss	$ (14,480)	$ (15,932)	$ (23,523)	$ 9,090	$ (43,335)	$ (48,173)	$ (71,780)	$ (25,972)	$ (44,845)		$ (189,260)		$ (5,847)
Loss allocated to Noncontrolling Interests									4,672		22,915		2,178
Distributions to Preferred Shareholders	$ (6,043)	$ (6,044)	$ (6,044)	$ (6,043)	$ (6,044)	$ (6,044)	$ (6,044)	$ (6,044)	(24,174)		(24,176)		(24,174)
Dividends Paid on Unvested Restricted Shares and LTIP Units									0		0		(981)
Net Loss from Continuing Operations attributable to Common Shareholders									$ (64,347)		$ (190,521)		$ (28,824)
DENOMINATOR:
Weighted average number of common shares - basic (in shares)	39,149,120	39,139,610	39,097,820	38,970,893	38,640,604	38,639,048	38,609,922	38,564,099	39,089,987		38,613,563		38,907,894
Effect of dilutive securities:
Restricted Stock Awards and LTIP Units (unvested) (in shares)									0		0		0
Contingently Issued Shares (in shares)									0		0		0
Weighted average number of common shares - diluted (in shares)	39,149,120	39,139,610	39,097,820	39,840,474	38,640,604	38,639,048	38,609,922	38,564,099	39,089,987	[1]	38,613,563	[1]	38,907,894	[1]

[1] Income allocated to noncontrolling interest in Hersha Hospitality Limited Partnership (the “Operating Partnership” or “HHLP”) has been excluded from the numerator and the Class A common shares issuable upon any redemption of the Operating Partnership’s common units of limited partnership interest (“Common Units”) and the Operating Partnership’s vested LTIP units (“Vested LTIP Units”) have been omitted from the denominator for the purpose of computing diluted earnings per share because the effect of including these shares and units in the numerator and denominator would have no impact.  In addition, potentially dilutive common shares, if any, have been excluded from the denominator if they are anti-dilutive to income applicable to common shareholders.