XML 88 R76.htm IDEA: XBRL DOCUMENT v3.25.0.1

Trade and Other Payables - Additional Information (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Trade And Other Payables [Line Items]
Accruals and other payables	$ 8,361	$ 7,847
Research and Development
Trade And Other Payables [Line Items]
Accruals and other payables	$ 5,900	$ 5,600

X

- Definition

Trade and other payables.

+ References

No definition available.

+ Details

Name:	sln_TradeAndOtherPayablesLineItems
Namespace Prefix:	sln_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: