Basis Of Presentation (Narrative) (Details) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($) entity shares	Sep. 30, 2017 USD ($) $ / shares entity shares	Sep. 30, 2016 USD ($) $ / shares	Dec. 31, 2016 USD ($) property shares	Oct. 31, 2016 USD ($)
Shareholders' Equity [Abstract]
Common Shares, Dividends declared (in dollars per share) | $ / shares		$ 0.84	$ 0.84
Stock Repurchase Program, Authorized Amount					$ 100,000
Repurchase of Common Shares		$ 4,749	$ 49,051
Proceeds from Issuance of Preferred Shares, Net			$ 185,999
Acquisition costs	$ 297	2,121
Deferred Gain on Disposition of Hotel Assets	$ 81,269	81,269		$ 81,314
Accounting Standards Update 2017-01 [Member]
Shareholders' Equity [Abstract]
Acquisition costs		$ 2,121
Accounting Standards Update 2014-09 [Member]
Shareholders' Equity [Abstract]
Number of Real Estate Properties | property				7
Deferred Gain on Disposition of Hotel Assets				$ 81,000
Share Distribution [Member]
Shareholders' Equity [Abstract]
Number of investment banks | entity	4	4
Hersha Hospitality Limited Partnership [Member]
Class of Stock [Line Items]
Approximate ownership percentage in the Partnership (in hundredths)	92.80%	92.80%
General partnership interest (in hundredths)		1.00%
Cindat Hersha Owner JV, LLC [Member]
Shareholders' Equity [Abstract]
Maximum exposure to losses due to investment in Joint Ventures	$ 0	$ 0
Noncontrolling Interests Common Units And LTIP Units [Member]
Noncontrolling Interest [Abstract]
Noncontrolling interests in Nonredeemable Common Units	$ 55,269	$ 55,269		$ 44,321
Nonredeemable common units outstanding (in shares) | shares	3,223,366	3,223,366
Fair market value of nonredeemable common units	$ 60,180	$ 60,180
Series E Preferred Stock [Member]
Shareholders' Equity [Abstract]
Distribution Rate		6.50%
Series E Preferred Stock [Member] | Share Distribution [Member]
Shareholders' Equity [Abstract]
Preferred Shares - Authorized (in shares) | shares	1,000,000	1,000,000
Series C Preferred Shares [Member]
Shareholders' Equity [Abstract]
Distribution Rate		6.875%
Series D Preferred Shares [Member]
Shareholders' Equity [Abstract]
Distribution Rate		6.50%
Series D Preferred Shares [Member] | Share Distribution [Member]
Shareholders' Equity [Abstract]
Preferred Shares - Authorized (in shares) | shares	1,000,000	1,000,000
Class A Common Shares [Member]
Shareholders' Equity [Abstract]
Common Shares - Outstanding (in shares) | shares	41,608,976	41,608,976		41,770,514
Common Shares - Authorized (in shares) | shares	104,000,000	104,000,000		90,000,000
Class A Common Shares [Member] | Share Distribution [Member]
Shareholders' Equity [Abstract]
Common Shares - Authorized (in shares) | shares	8,000,000	8,000,000