DEBT (Junior Notes Payable) (Details) - Payment in Kind (PIK) Note - USD ($)		6 Months Ended
Feb. 17, 2021	Jun. 30, 2021
Debt Instrument
Debt instrument, face amount	$ 150,000	$ 152,514,000
Debt instrument, interest rate, percentage	0.095%
Discretionary withdrawal amount	$ 50,000
Debt instrument, minimum installments	$ 25,000
Discretionary interest rate, stated percentage	0.0475%
PIK, stated percentage	4.75%
Increase in accrued interest		$ 2,514,000
Debt Instrument, Redemption, Period One
Debt Instrument
Redemption percentage	104.00%
Debt Instrument, Redemption, Period Two
Debt Instrument
Redemption percentage	102.00%

Debt Instrument, Aggregate Discretionary Withdrawal Amount

No definition available.

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Namespace Prefix:	ht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Discretionary Interest Rate, Stated Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	ht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Minimum Periodic Payment

+ References

No definition available.

+ Details

Name:	ht_DebtInstrumentMinimumPeriodicPayment
Namespace Prefix:	ht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Debt Instrument, PIK, Stated Percentage

+ References

No definition available.

+ Details

Name:	ht_DebtInstrumentPIKStatedPercentage
Namespace Prefix:	ht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Increase for accrued, but unpaid interest on the debt instrument for the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Details

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- Details

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- Details

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