Investment In Unconsolidated Joint Ventures (Investment In Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Investments in Unconsolidated Joint Ventures [Line Items]
Investment in unconsolidated joint ventures	$ 11,441	$ 10,316
SB Partners, LLC [Member] \| Holiday Inn Express, Boston, MA [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Percent Owned	50.00%
Investment in unconsolidated joint ventures	$ 913	795
Hiren Boston, LLC [Member] \| Courtyard by Marriott, Boston, MA [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Percent Owned	50.00%
Investment in unconsolidated joint ventures	$ 2,112	4,499
Mystic Partners, LLC [Member] \| Hilton and Marriott branded hotels in CT and RI [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Preferred Return	8.50%
Investment in unconsolidated joint ventures	$ 4,699	$ 5,022
Mystic Partners, LLC [Member] \| Hilton and Marriott branded hotels in CT and RI [Member] \| Minimum [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Percent Owned	8.80%
Mystic Partners, LLC [Member] \| Hilton and Marriott branded hotels in CT and RI [Member] \| Maximum [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Percent Owned	66.70%
Cindat Hersha Owner JV, LLC [Member] \| Hilton and IHG branded hotels in NYC [Member]
Investments in Unconsolidated Joint Ventures [Line Items]
Percent Owned	30.00%
Investment in unconsolidated joint ventures	$ 3,717

Represent's the Company's preferred return based on the joint venture agreement.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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