General	6 Months Ended
Jun. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	GENERAL In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the financial position of Stillwater Mining Company (the “Company”) as of June 30, 2012, and the results of its operations and its cash flows for the three- and six- month periods ended June 30, 2012 and 2011. The results of operations for the first six months of 2012 are not necessarily indicative of the results to be expected for the full year. The accompanying consolidated financial statements in this quarterly report should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's March 31, 2012 Quarterly Report on Form 10-Q and in the Company’s 2011 Annual Report on Form 10-K. All intercompany transactions and balances have been eliminated in consolidation. The preparation of the Company’s consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. The more significant areas requiring the use of management’s estimates relate to mineral reserves, reclamation and environmental obligations, valuation allowance for deferred tax assets, useful lives utilized for depreciation, amortization and accretion calculations, future cash flows from long-lived assets, and fair value of derivatives and other financial instruments. Actual results could differ from these estimates. No subsequent events were identified that required additional disclosure in the consolidated financial statements through the date of this filing.

General

6 Months Ended

Jun. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

GENERAL

In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the financial position of Stillwater Mining Company (the “Company”) as of June 30, 2012, and the results of its operations and its cash flows for the three- and six- month periods ended June 30, 2012 and 2011. The results of operations for the first six months of 2012 are not necessarily indicative of the results to be expected for the full year. The accompanying consolidated financial statements in this quarterly report should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's March 31, 2012 Quarterly Report on Form 10-Q and in the Company’s 2011 Annual Report on Form 10-K. All intercompany transactions and balances have been eliminated in consolidation.

The preparation of the Company’s consolidated financial statements in conformity with United States generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. The more significant areas requiring the use of management’s estimates relate to mineral reserves, reclamation and environmental obligations, valuation allowance for deferred tax assets, useful lives utilized for depreciation, amortization and accretion calculations, future cash flows from long-lived assets, and fair value of derivatives and other financial instruments. Actual results could differ from these estimates.

No subsequent events were identified that required additional disclosure in the consolidated financial statements through the date of this filing.