Disposition fee.

No definition available.

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Period Type:	duration

- Definition

Final distributions made upon sale of assets.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of student housing assets sold.

+ References

No definition available.

+ Details

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- Definition

Net increase or decrease in the carrying amount of 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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Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sssht_NationwideLoanMember
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- Details

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Subsequent Events - Additional Information - (Detail)			12 Months Ended
Subsequent Events - Additional Information - (Detail)	Feb. 09, 2022 USD ($) Asset	Jan. 06, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Subsequent Event [Line Items]
Repayment of loan			$ 50,000	$ 3,099,934	$ 4,559,580
Subsequent Event [Member]
Subsequent Event [Line Items]
Final distributions made upon sale of assets	$ 1,000,000.0
Subsequent Event [Member] \| Power 5 Conference Student Housing [Member]
Subsequent Event [Line Items]
Number of student housing assets sold \| Asset	2
Gain on sale of assets	$ 500,000
Subsequent Event [Member] \| Tallahassee Property [Member]
Subsequent Event [Line Items]
Sale of property		$ 50,000,000
Disposition fee		250,000
Subsequent Event [Member] \| Nationwide Loan [Member] \| Tallahassee Property [Member]
Subsequent Event [Line Items]
Repayment of loan		23,500,000
Subsequent Event [Member] \| KeyBank Bridge Loans [Member]
Subsequent Event [Line Items]
Repayment of loan		17,000,000
Reduction in total balance		$ (27,000,000)