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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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BASIS OF PRESENTATION (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Noncontrolling Interest [Abstract]
Share conversion ratio (shares)		1		1
Loss attributable to noncontrolling interest		$ 0	$ 0	$ 158	$ 0
Adjustments to additional paid in capital		1,154,550		1,154,550		$ 1,150,985
Adjustments to nocontrolling interest		48,092		48,092		49,246
Proceeds from unsecured debt				167,750	0
Unsecured term loan		495,871		495,871		681,744
Line of credit		118,684		$ 118,684		133,053
Unsecured Debt
Noncontrolling Interest [Abstract]
Proceeds from unsecured debt	$ 144,750
Buildings and Improvements \| Maximum
Noncontrolling Interest [Abstract]
Useful life of buildings and improvements (in years)				40 years
Furniture, Fixtures and Equipment \| Minimum
Noncontrolling Interest [Abstract]
Useful life of buildings and improvements (in years)				2 years
Furniture, Fixtures and Equipment \| Maximum
Noncontrolling Interest [Abstract]
Useful life of buildings and improvements (in years)				7 years
Adjustment
Noncontrolling Interest [Abstract]
Adjustments to additional paid in capital		(1,968)		$ (1,968)
Adjustments to nocontrolling interest		1,968		1,968
Term Loans:
Noncontrolling Interest [Abstract]
Unsecured term loan		495,871		495,871		681,744
Term Loans: \| First And Third Term Loan Member
Noncontrolling Interest [Abstract]
Unsecured term loan		218,635		218,635
Noncontrolling Interest \| Common Shares
Noncontrolling Interest [Abstract]
Noncontrolling interests in nonredeemable common units		$ 48,092		$ 48,092		$ 49,246
Nonredeemable common units outstanding (in shares)		5,951,741		5,951,741
Fair market value of nonredeemable common units		$ 55,530		$ 55,530
Additional Paid-In Capital
Noncontrolling Interest [Abstract]
Increase to noncontrolling joint venture interest				$ (1,968)	$ 3,196
Senior Common Equity Interest
Noncontrolling Interest [Abstract]
Noncontrolling interest, common equity interest, return				12.00%
Hersha Hospitality Limited Partnership
Class of Stock
Approximate ownership percentage in the partnership (percent)		86.80%		86.80%
General partnership interest (percent)				1.00%
Consolidated Joint Ventures
Noncontrolling Interest [Abstract]
Noncontrolling interest, ownership percentage		15.00%		15.00%
Cumulative return on common equity interest (percent)		30.00%		30.00%
Consolidated Joint Ventures \| Senior Common Equity Interest
Noncontrolling Interest [Abstract]
Cumulative return on common equity interest (percent)		25.00%		25.00%
Consolidated Joint Ventures \| Junior Common Equity Interest
Noncontrolling Interest [Abstract]
Noncontrolling interest, common equity interest, return				8.00%
Hersha Holding RC Owner, LLC
Noncontrolling Interest [Abstract]
Cumulative return on common equity interest (percent)		70.00%		70.00%
Hersha Holding RC Owner, LLC \| Senior Common Equity Interest
Noncontrolling Interest [Abstract]
Noncontrolling interest, common equity interest, return				8.00%
Cumulative return on common equity interest (percent)		75.00%		75.00%