INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Income Or Loss From Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Investments in Unconsolidated Joint Ventures
Income (loss) from equity method investments	$ (669)	$ 38	$ (2,189)	$ 518
Cindat Hersha Owner JV, LLC
Investments in Unconsolidated Joint Ventures
Income (loss) from equity method investments	0	0	0	0
Hiren Boston, LLC
Investments in Unconsolidated Joint Ventures
Income (loss) from equity method investments	(457)	79	(1,337)	217
SB Partners, LLC
Investments in Unconsolidated Joint Ventures
Income (loss) from equity method investments	0	0	(600)	375
SB Partners Three, LLC
Investments in Unconsolidated Joint Ventures
Income (loss) from equity method investments	$ (212)	$ (41)	$ (252)	$ (74)

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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