Date the declared dividend will be paid, in YYYY-MM-DD format.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482913/230-10-50-3

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

+ Details

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Date the dividend to be paid was declared, in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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

- Details

Name:	us-gaap_DividendsAxis=ck0001925309_DividendDeclaredOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=ck0001925309_DividendDeclaredTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=ck0001925309_DividendDeclaredThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Dividends - Summary of Dividends Declared (Details) - $ / shares	Sep. 29, 2023	Jun. 30, 2023	Mar. 30, 2023	Sep. 30, 2023
Dividends Payable [Line Items]
Date Declared		Jun. 30, 2023	Mar. 30, 2023
Record Date		Jun. 30, 2023	Mar. 31, 2023
Dividend per Share				$ 1.74
Dividend Declared on March 30, 2023
Dividends Payable [Line Items]
Date Declared			Mar. 30, 2023
Record Date			Mar. 31, 2023
Payment Date			May 09, 2023
Dividend per Share			$ 0.4
Dividend Declared on June 30, 2023
Dividends Payable [Line Items]
Date Declared		Jun. 30, 2023
Record Date		Jun. 30, 2023
Payment Date		Aug. 15, 2023
Dividend per Share		$ 0.67
Dividend Declared on September 29, 2023
Dividends Payable [Line Items]
Date Declared	Sep. 29, 2023
Record Date	Sep. 30, 2023
Payment Date	Nov. 15, 2023
Dividend per Share	$ 0.67