SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Risks and Uncertainties	Risks and Uncertainties As a mining company, the revenue, profitability and future rate of growth of the Company are substantially dependent on the prevailing prices for gold, silver, lead and zinc. The prices of these metals are volatile and affected by many factors beyond the Company’s control, and there can be no assurance that commodity prices will not be subject to wide fluctuations in the future. A substantial or extended decline in commodity prices could have a material adverse effect on the Company’s financial position, results of operations, cash flows, access to capital and the quantities of reserves that the Company can economically produce. The carrying value of the Company’s Mineral properties, plant and equipment; Inventories; and Deferred income tax assets are sensitive to the outlook for commodity prices. A decline in the Company’s price outlook could result in material impairment charges related to these assets. In addition, the Company maintains cash balances at banking institutions in various jurisdictions which may or may not have deposit insurance. The Company mitigates potential cash risk by maintaining bank accounts with credit-worthy financial institutions. Any loss incurred or a lack of access to such funds could have a significant adverse impact on the Company's financial condition, results of operations, and cash flows. The Company's business may be impacted by adverse macroeconomic and geopolitical conditions. These conditions include inflation, interest rate and foreign currency fluctuations and slowdown of economic activity around the world. The Company maintains its cash and cash equivalents primarily in United States dollars (“USD”). Any fluctuation in the exchange rate of the Turkish Lira (“TRY”), Canadian Dollar (“CAD”), Argentine Peso (“ARS”), or the currency of any other country in which the Company operates, against the USD could result in a loss on the Company’s books to the extent the Company holds funds or net monetary or non-monetary assets denominated in those currencies, and any fluctuations of currency prices generally may result in volatility. Certain of the Company's operations are located in countries that have in the past and are currently experiencing high rates of inflation. It is possible that in the future, high inflation in the countries in which we operate may result in an increase in operational costs in local currencies (without a concurrent devaluation of the local currency of operations against the dollar or an increase in the dollar price of gold, silver, copper, zinc or lead). Maintaining operating costs in currencies subject to significant inflation could expose us to risks relating to devaluation and high domestic inflation.
Held for Sale and Discontinued Operations	Held for Sale and Discontinued Operations The Company classifies long-lived assets, or disposal groups comprised of assets and liabilities, as held for sale in the period in which the criteria are met in accordance with Accounting Standards Codification (“ASC”) 360, Property, Plant and Equipment (“ASC 360”). A component of an entity that is classified as held for sale is recorded at the lower of its carrying amount or estimated fair value less cost to sell. If the carrying amount of the component exceeds its estimated fair value less cost to sell, a loss is recognized. Any subsequent increase in fair value less costs to sell (not exceeding the accumulated loss that has been previously recognized) is recognized as a reversal of expense. Additional losses may result as the Company continues to evaluate the fair value of assets held for sale and monitors market conditions and other economic factors. Assets and liabilities related to a component classified as held for sale are segregated in the current balance sheets in the period in which the component is classified as held for sale. The Company ceases depreciation and amortization on long-lived assets (or disposal groups) classified as held for sale. The Company reports the results of operations of a component as discontinued operations if a disposal represents a strategic shift that has (or will have) a major effect on the Company’s operations and financial results when the component is classified as held for sale, in accordance with ASC 360, and ASC 205-20, Presentation of Financial Statements - Discontinued Operations (“ASC 205”). The results of discontinued operations are reported in net income (loss) from discontinued operations, net of income taxes in the accompanying Condensed Consolidated Statements of Operations for current and prior periods, including any gain or loss recognized on closing or adjustment of the carrying amount to fair value less cost to sell.
Basis of Presentation	Basis of Presentation The Condensed Consolidated Financial Statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by generally accepted accounting principles (“GAAP”) in the United States. Therefore, this information should be read in conjunction with SSR Mining Inc.’s Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on February 17, 2026. The information furnished herein reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods reported. All such adjustments are, in the opinion of management, of a normal recurring nature. The results for the three month periods ended March 31, 2026, are not necessarily indicative of the results that may be expected for the year ending December 31, 2026.
Reclassifications	Reclassifications Certain reclassifications have been made to the prior period financial information to reflect discontinued operations presentation. Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate solely to continuing operations and exclude all discontinued operations.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In November 2024, the FASB issued ASU 2024-03 “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40).” ASU 2024-03 provides guidance requiring that public business entities to disclose additional information about specific expense categories in the notes to financial statements. The new standard is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027 with early adoption permitted. The ASU 2024-03 should be applied either (1) prospectively to financial statements issued for reporting periods after the effective date, or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the standard on the Condensed Consolidated Financial Statements.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

3 Months Ended

Mar. 31, 2026

As a mining company, the revenue, profitability and future rate of growth of the Company are substantially dependent on the prevailing prices for gold, silver, lead and zinc. The prices of these metals are volatile and affected by many factors beyond the Company’s control, and there can be no assurance that commodity prices will not be subject to wide fluctuations in the future. A substantial or extended decline in commodity prices could have a material adverse effect on the Company’s financial position, results of operations, cash flows, access to capital and the quantities of reserves that the Company can economically produce. The carrying value of the Company’s Mineral properties, plant and equipment; Inventories; and Deferred income tax assets are sensitive to the outlook for commodity prices. A decline in the Company’s price outlook could result in material impairment charges related to these assets. In addition, the Company maintains cash balances at banking institutions in various jurisdictions which may or may not have deposit insurance. The Company mitigates potential cash risk by maintaining bank accounts with credit-worthy financial institutions. Any loss incurred or a lack of access to such funds could have a significant adverse impact on the Company's financial condition, results of operations, and cash flows.

The Company's business may be impacted by adverse macroeconomic and geopolitical conditions. These conditions include inflation, interest rate and foreign currency fluctuations and slowdown of economic activity around the world. The Company maintains its cash and cash equivalents primarily in United States dollars (“USD”). Any fluctuation in the exchange rate of the Turkish Lira (“TRY”), Canadian Dollar (“CAD”), Argentine Peso (“ARS”), or the currency of any other country in which the Company operates, against the USD could result in a loss on the Company’s books to the extent the Company holds funds or net monetary or non-monetary assets denominated in those currencies, and any fluctuations of currency prices generally may result in volatility. Certain of the Company's operations are located in countries that have in the past and are currently experiencing high rates of inflation. It is possible that in the future, high inflation in the countries in which we operate may result in an increase in operational costs in local currencies (without a concurrent devaluation of the local currency of operations against the dollar or an increase in the dollar price of gold, silver, copper, zinc or lead). Maintaining operating costs in currencies subject to significant inflation could expose us to risks relating to devaluation and high domestic inflation.

Held for Sale and Discontinued Operations

The Company classifies long-lived assets, or disposal groups comprised of assets and liabilities, as held for sale in the period in which the criteria are met in accordance with Accounting Standards Codification (“ASC”) 360, Property, Plant and Equipment (“ASC 360”). A component of an entity that is classified as held for sale is recorded at the lower of its carrying amount or estimated fair value less cost to sell. If the carrying amount of the component exceeds its estimated fair value less cost to sell, a loss is recognized. Any subsequent increase in fair value less costs to sell (not exceeding the accumulated loss that has been previously recognized) is recognized as a reversal of expense. Additional losses may result as the Company continues to evaluate the fair value of assets held for sale and monitors market conditions and other economic factors. Assets and liabilities related to a component classified as held for sale are segregated in the current balance sheets in the period in which the component is classified as held for sale. The Company ceases depreciation and amortization on long-lived assets (or disposal groups) classified as held for sale.

The Company reports the results of operations of a component as discontinued operations if a disposal represents a strategic shift that has (or will have) a major effect on the Company’s operations and financial results when the component is classified as held for sale, in accordance with ASC 360, and ASC 205-20, Presentation of Financial Statements - Discontinued Operations (“ASC 205”). The results of discontinued operations are reported in net income (loss) from discontinued operations, net of income taxes in the accompanying Condensed Consolidated Statements of Operations for current and prior periods, including any gain or loss recognized on closing or adjustment of the carrying amount to fair value less cost to sell.

Basis of Presentation

The Condensed Consolidated Financial Statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by generally accepted accounting principles (“GAAP”) in the United States. Therefore, this information should be read in conjunction with SSR Mining Inc.’s Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on February 17, 2026. The information furnished herein reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods reported. All such adjustments are, in the opinion of management, of a normal recurring nature. The results for the three month periods ended March 31, 2026, are not necessarily indicative of the results that may be expected for the year ending December 31, 2026.

Reclassifications

Certain reclassifications have been made to the prior period financial information to reflect discontinued operations presentation. Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate solely to continuing operations and exclude all discontinued operations.

Recently Issued Accounting Pronouncements

In November 2024, the FASB issued ASU 2024-03 “Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40).” ASU 2024-03 provides guidance requiring that public business entities to disclose additional information about specific expense categories in the notes to financial statements. The new standard is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027 with early adoption permitted. The ASU 2024-03 should be applied either (1) prospectively to financial statements issued for reporting periods after the effective date, or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the standard on the Condensed Consolidated Financial Statements.