XML 53 R43.htm IDEA: XBRL DOCUMENT
v3.23.2

Summary of Relative Fair Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) $ in Millions | Jun. 01, 2022 USD ($)
--- | ---
SSGT II Merger Agreement |
Business Acquisition [Line Items] |
Intangible assets acquired | $ 8.0
KeyBank SST IV CMBS Loan |
Business Acquisition [Line Items] |
Fair market value discount on debt | $ 16.1

X
- Definition Business combination fair market value discount on debt. + References No definition available. + Details
Name: | ck0001585389_BusinessCombinationFairMarketValueDiscountOnDebt
Namespace Prefix: | ck0001585389_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ck0001585389_SSGTIIMergerAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ck0001585389_KeyBankSstIvCmbsLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |