Summary of significant accounting policies (Policies) |
6 Months Ended |
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Jun. 30, 2026 | |
| Accounting Policies [Abstract] | |
| Basis of presentation | These unaudited condensed consolidated interim financial statements and related notes have been prepared in accordance with US GAAP for interim financial information. Accordingly, they do not include all of the financial information and note disclosures required by US GAAP for complete consolidated financial statements. The condensed consolidated interim financial statements are presented in US Dollars and all amounts are in millions, except for the number of shares, per share amounts and the number of securities. |
| Reclassifications | Certain prior year comparative information has been reclassified to conform to the current presentation. |
| Future application of accounting standards | Future application of accounting standards Internal-Use Software In September 2025, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2025-06 Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) — Targeted Improvements to the Accounting for Internal-Use Software, to modernize the accounting guidance for the costs to develop software for internal use. The standard amends the existing standard that refers to various stages of a software development project to align better with current software development methods, such as agile programming. Under the new standard, entities will start capitalizing eligible costs when (1) management has authorized and committed to funding the software project, and (2) it is probable that the project will be completed and the software will be used to perform the function intended. The standard is effective for all entities for annual periods beginning after December 15, 2027. The standard can be applied on a prospective basis, a retrospective basis or a modified basis for in-process projects. We are assessing the impact of this standard. Disaggregation of Income Statement Expenses In November 2024, the FASB issued ASU 2024-03 Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40) — Disaggregation of Income Statement Expenses, requiring new interim and annual disclosures that provide transparency about the components of expenses included in the income statement and enhance an investor’s ability to forecast future performance. The standard requires disclosure of: •The amounts of employee compensation, depreciation, intangible asset amortization, and certain other costs included in each relevant expense caption as well as the inclusion of certain amounts already required to be disclosed under existing US GAAP in the same disclosure; •A qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and •The total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. The standard is effective for annual periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, with early adoption permitted. The standard will be applied on a prospective basis with the option to apply the standard retrospectively. This standard will not have any impact to the amounts recorded within our consolidated financial statements, but will result in expanded disclosures. We are assessing the impact of this standard.
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| Segment information | We have three reportable segments (Exchange Services, MGA Operations, and Underwriting). Each of our reportable segments serve the specific needs of our customers based on the products and services provided and reflects the way our Chief Operating Decision Maker ("CODM") assesses performance of the business and makes decisions on the allocation of resources. Our CODM is our Chief Executive Officer. During the first quarter of 2026, we modified our definition for Adjusted EBITDA to exclude the impact of realized and unrealized investment gains or losses. Prior period segment information has been conformed to the current period presentation. Exchange Services Exchange Services, which is the core of Accelerant, captures the revenue and expenses associated with the Accelerant Risk Exchange. The Accelerant Risk Exchange is the platform that houses Accelerant technology, data ingestion, and operations that serve the needs of our Members and Risk Capital Partners. Insurance companies that join the Accelerant Risk Exchange pay Accelerant a fixed-percentage volume-based fee for sourcing, managing, and monitoring the business they write. The Accelerant Risk Exchange pays fees to Members for the distribution services provided to both consolidated affiliates and third parties. We eliminate net fees and other income earned by the Exchange Services segment in consolidation to the extent such income is received from consolidated insurance companies within the Underwriting segment. Only income earned from third-party companies is not eliminated in consolidation. MGA Operations MGA Operations consists of our Mission Underwriters ("Mission") and Owned Members reporting units. Mission is a licensed insurance agency that functions as an MGA incubator in the US, UK and EU and represents the largest component of the segment. The Owned Members reporting unit comprises MGAs in which we have made non-controlling or controlling equity investments. Our investments in existing Members typically take the form of an initial minority stake and contractual call option for a majority stake over time. We eliminate commission income earned by MGA Operations in consolidation to the extent it is received from consolidated insurance companies within the Underwriting segment. Only commission income earned from third-party companies is not eliminated in consolidation. Underwriting Underwriting contains all revenue and expenses associated with the underwriting of insurance policies and assumption of reinsurance policies issued or accepted by Accelerant’s consolidated insurance and reinsurance companies. Our Underwriting segment is a strategic asset that enables access to Accelerant’s portfolio for current and prospective Risk Capital Partners. The activities of these (re)insurance companies include property and casualty insurance, policy issuance, reinsurance arrangements and the payment of commission and other acquisition costs to the Exchange Services segment. Premium revenue is earned in exchange for the property and casualty insurance policies issued and reinsurance coverage provided. For segment presentation purposes, the commission expense paid to the wholly-owned agencies is subject to deferral as DAC for the portion of insurance policies not subject to reinsurance. DAC associated with business ceded is offset by ceding commissions received from reinsurers, which is typically more than the DAC. The DAC associated with business retained, as well as the excess ceding commissions from reinsurers, are both amortized over the related policy term. Accelerant Re also cedes premium and losses to, and receives ceding commissions from, several third-party reinsurers, including Flywheel Re. Similar to the Exchange Services and MGA Operations segments, transaction activity with our consolidated affiliates is subject to elimination (and therefore the amount of DAC, deferred ceding commissions, DAC amortization and amortization of ceding commission income in consolidation will differ from that presented within the segment results). Specifically, only commission payments and other acquisition expenses paid to third-parties are subject to deferral and amortization in consolidation. We consider the segment presentations of Exchange Services, MGA Operations and Underwriting segments prior to elimination to be the best way to evaluate Accelerant's business and how these business components would be presented if they were stand-alone operations. As we continue to generate increasing third-party insurance premiums through the Accelerant Risk Exchange, the standalone segment results will more closely align with the consolidated results (as such third- party transactions are not subject to elimination).
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