Earnings Per Share (Reconciliation Of Earnings Per Share) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic and Diluted
Net Income		$ 3,263	$ 8,205	$ 114,006	$ 114,745
Income allocated to Noncontrolling Interests		90	(211)	(5,849)	(4,273)
Distributions to Preferred Shareholders		(6,040)	(4,417)	(18,124)	(12,006)
Dividends Paid on Unvested Restricted Shares and LTIP Units		(90)	(119)	(286)	(376)
Extinguishment of Issuance Costs Upon Redemption of Series B Preferred Shares					(4,021)
Net Income (Loss) attributable to Common Shareholders		$ (2,777)	$ 3,458	$ 89,747	$ 94,069
DENOMINATOR:
Weighted average number of common shares - basic (in shares)		41,721,425	42,309,044	41,725,159	43,368,153
Effect of dilutive securities [Abstract]
Restricted Stock Awards and LTIP Units (unvested) (in shares)			241,771	195,645	227,572
Contingently Issued Shares and Units (in shares)			195,049	304,434	273,568
Weighted average number of common shares - diluted (in shares)	[1]	41,721,425	42,745,864	42,225,238	43,869,293

[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.