v3.25.2

S-K 1603(a) SPAC Sponsor	Sep. 17, 2025
SPAC Sponsor [Line Items]
SPAC Sponsor Form of Organization	Corporation
SPAC Sponsor Name	Westin Investment Co. Ltd

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 1603
-Subsection a
-Paragraph 1

Name:	spac_SpacSponsorFormOfOrganization
Namespace Prefix:	spac_
Data Type:	spac:formOfOrganizationItemType
Balance Type:	na
Period Type:	duration

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 1603
-Subsection a

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K
-Number 229
-Section 1603
-Subsection a

Westin Acquisition Corp S-1/A