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Enforcement, Amount Executive Category: Executive Category [Axis] Accrued liabilities and other Accrued liabilities and other Total accrued liabilities and other Accrued Liabilities And Other Liabilities, Current Accrued Liabilities And Other Liabilities, Current Increase (decrease) in operating liabilities: Increase (Decrease) in Operating Liabilities [Abstract] Equity method investments Equity Method Investments, Non-Current Equity Method Investments, Non-Current LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Cash paid in lieu of fractional shares and interest Debt Instrument, Convertible, Cash Paid In Lieu Of Fractional Shares And Interest Debt Instrument, Convertible, Cash Paid In Lieu Of Fractional Shares And Interest Inventories Inventories Total current inventories Inventory, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] Interest received Interest Received Interest Received Level 3 Fair Value, Inputs, Level 3 [Member] Supplemental Cash Flow Information [Abstract] Common shares, authorized (in shares) Common Stock, Shares Authorized, Unlimited [Fixed List] Business Combination, Separately Recognized Transaction [Table] Business Combination, Separately Recognized Transaction [Table] Risks and Uncertainties Risks And Uncertainties, Policy [Policy Text Block] Risks And Uncertainties, Policy PEO Name PEO Name Convertible threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Accrued liabilities and other Increase (Decrease) in Accrued Liabilities Income taxes paid Income Tax Paid, before Refund Received Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Payment of contingent consideration Payment for Contingent Consideration Liability, Financing Activities Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Equity Method Investment Equity Method Investments [Policy Text Block] Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Each milestone payment Business Combination, Contingent Consideration, Milestone Payment Business Combination, Contingent Consideration, Milestone Payment Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share THE COMPANY Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Ownership percentage Equity Method Investment, Ownership Percentage Acquisitions, net Cash consideration Payments to Acquire Businesses, Gross Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Disposal Group Name [Axis] Disposal Group Name [Axis] Schedule of Debt Schedule of Debt [Table Text Block] Conversion of 2019 Notes (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Investment, Name [Domain] Investment, Name [Domain] Schedule of Inventory, Current Schedule of Inventory, Current [Table Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) Earnings Per Share, Basic Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Repurchase of common shares Payments for Repurchase of Common Stock  Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Debt Long-Term Debt, Excluding Current Maturities SSR Mining SSR Mining [Member] SSR Mining Award Type [Axis] Award Type [Axis] Interest saving on 2019 Notes, net of tax Interest On Convertible Debt, Continuing Operations, Net Of Tax Interest On Convertible Debt, Continuing Operations, Net Of Tax Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Trade receivables Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Convertible, threshold trading days Debt Instrument, Convertible, Threshold Trading Days Change in fair value of contingent consideration Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Payments for reclamation and remediation liabilities Payments For Asset Retirement Obligation, Liabilities Payments For Asset Retirement Obligation, Liabilities Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Average price per ounce/pound (in dollars per ounce/pound) Derivative, Average Forward Price Common shares  Common Shares Common Stock [Member] Loss on the divestment Loss on divestiture of Çöpler Loss (gain) on sale and disposal of assets, net Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Fair Value Measurement [Domain] Fair Value Measurement [Domain] Contingent consideration liabilities Business Combination, Contingent Consideration, Liability Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Deferred consideration Deferred Consideration, Fair Value Disclosure Deferred Consideration, Fair Value Disclosure Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Noncurrent Total liabilities and equity  Liabilities and Equity Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Non-controlling interest Non-controlling interest Equity, Attributable to Noncontrolling Interest Reclamation and remediation liabilities Reclamation and remediation liabilities Asset Retirement Obligation, Current Other operating liabilities Increase (Decrease) in Other Operating Liabilities Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party, Type [Domain] Related and Nonrelated Parties [Domain] Schedule of Trade and Other Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Other income (expense) Other income (expense) Total Other Nonoperating Income (Expense) Total equity attributable to SSR Mining shareholders Parent [Member] Schedule of Accrued Liabilities and Other Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Income tax receivable Income Taxes Receivable, Current Adjustments for dilutive instruments, 2019 Notes (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Other operating expense (income), net Other operating expense (income), net Total  Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name EQUITY Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Puna Puna Puna Segment [Member] Puna Segment Mineral properties, plant and equipment, net Mineral properties, plant and equipment, net Mineral properties, plant, and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Including Mineral Properties, Accumulated Depletion Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Including Mineral Properties, Accumulated Depletion General and administrative expense General and administrative expense General and Administrative Expense Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Other taxes receivable Other Taxes Receivable, Current Other Taxes Receivable, Current Conversion of 2019 Notes Stock Issued During Period, Value, Conversion of Convertible Securities Trade and other receivables Trade and other receivables Total Receivables, Net, Current Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Adjustment to Compensation: Adjustment to Compensation [Axis] Mineral properties not yet subject to depletion Mineral Properties Not Yet Subject To Depletion [Member] Mineral Properties Not Yet Subject To Depletion Change in fair value of marketable securities Marketable Security, Unrealized Gain (Loss) Share Repurchase Program [Axis] Share Repurchase Program [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Divestiture of Çöpler Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Inventory [Line Items] Inventory [Line Items] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets Assets, Fair Value Disclosure Discontinued Operations and Disposal Groups [Abstract] Name Measure Name INCOME AND MINING TAXES Income Tax Disclosure [Text Block] Accounts payable Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Equity method investments Equity Method Investments, Current Equity Method Investments, Current Total consideration amount Business Combination, Consideration Transferred Entity Filer Category Entity Filer Category Change in fair value of deferred consideration Deferred Consideration , Change In Fair Value Deferred Consideration , Change In Fair Value Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Company Selected Measure Amount Company Selected Measure Amount Depreciation, depletion, and amortization Depreciation, Depletion and Amortization Entity Address, Address Line Two Entity Address, Address Line Two Marigold Marigold Marigold Segment [Member] Marigold Segment Net income (loss) Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other Derivative Liability Revenue Business Combination, Pro Forma Information, Pro Forma Revenue Non-PEO NEO Non-PEO NEO [Member] Convertible Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income and mining tax benefit (expense) Income and mining tax benefit (expense) Income Tax Expense (Benefit) Foreign exchange gain (loss) Foreign exchange gain (loss) Foreign exchange gain (loss) Gain (Loss), Foreign Currency Transaction, before Tax Ownership interest (as a percent) Divestiture Of Ownership Interest Percentage Divestiture Of Ownership Interest Percentage OTHER OPERATING EXPENSE (INCOME), NET Other Operating Income and Expense [Text Block] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Net increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Net income (loss) attributable to SSR Mining shareholders Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Net income (loss) from discontinued operations Net (income) loss from discontinued operations Net income (loss) from discontinued operations Net income (loss) from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercise of stock options Proceeds from Stock Options Exercised Number of consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Continuing operations Net income (loss) attributable to SSR Mining shareholders from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]