Investment In Unconsolidated Joint Ventures (Summary Financial Information Related To Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets [Abstract]
Investment in hotel properties, net	$ 647,548	$ 105,354
Other Assets	45,576	15,558
Total Assets	693,124	120,912
Liabilities and Equity [Abstract]
Mortgages and notes payable	432,173	113,532
Other liabilities	36,275	30,575
Equity [Abstract]
Hersha Hospitality Trust	119,892	22,698
Joint Venture Partner(s)	104,784	(45,893)
Total Equity	224,676	(23,195)
Total Liabilities and Equity	693,124	120,912
Statements of Operations [Abstract]
Room Revenue	118,645	57,927	$ 59,135
Other Revenue	24,424	22,776	21,725
Operating Expenses	(80,091)	(55,178)	(54,831)
Lease Expense	(1,143)	(1,115)	(1,063)
Property Taxes and Insurance	(9,512)	(2,948)	(2,934)
General and Administrative	(8,976)	(5,609)	(5,783)
Depreciation and Amortization	(13,286)	(6,549)	(6,376)
Interest Expense	(18,568)	(6,677)	(11,995)
Acquisition Costs	(1,468)
Other Income	2,466
Debt Extinguishment and Gain on Debt Forgiveness			3,016
(Loss) Gain allocated to Noncontrolling Interests	(46)	(341)	115
Net Income	$ 12,445	$ 2,286	$ 1,009