Purpose Drawing on institutional theory analytical perspectives of theorisation and translation, this study aims to explore the institutionalisation of eXtensible Business Reporting Language (XBRL) in Indonesia from a regulatory and filer perspective. Design/methodology/approach The Indonesian capital market offers a unique case of the integration of XBRL regulatory reporting between multiple regulators and a transfer from capital market regulation to state-level regulation. This study uses semi-structured interviews with key actors employed with Indonesian XBRL-regulatory bodies and listed companies (filers). Findings External pressures, monitoring issues and tensions in the implementation process were instrumental in the theorisation and translation of XBRL in Indonesia. Specifically, the findings show that choices made with respect to XBRL regulation and implementation created tensions between XBRL reporting fulfilling a monitoring purpose and serving stakeholders’ interests. The findings also indicate that the Indonesian approach to XBRL regulation and implementation had distinct characteristics compared to XBRL implementation in other jurisdictions. Practical implications This study emphasises the necessity for robust regulatory support and strict enforcement to navigate the complexities and tensions arising from a multi-regulatory approach. Additionally, it stresses the importance of firms’ readiness and expertise in XBRL as more sophisticated implementation strategies are considered. Originality/value Using the analytical lens of theorisation and translation, the study provides a deeper understanding of how a globally diffused accounting technology was institutionalised and legitimised in a developing country. Specifically, this study explains why a conversion approach to XBRL implementation was favoured and how XBRL implementation and reporting were managed and coordinated between different Indonesian regulators.