Basis of Presentation

3 Months Ended

Mar. 31, 2013

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

OM Group, Inc. (the “Company”, “we”, “our”, “us”) is a technology-based industrial growth company serving attractive global markets, including automotive systems, electronic devices, aerospace, industrial and renewable energy. We use innovative technologies to address customers' complex applications and demanding requirements. Our strategy is to grow organically through product innovation and new market and customer development; to grow strategically through synergistic acquisitions; and to maximize total stockholder return through a combination of business growth, financial discipline, optimal deployment of capital and continued operational excellence. Our objective is to deliver sustainable, profitable growth and create long-term stockholder value. We were formed in 1991 as a Delaware Corporation.

The consolidated financial statements include the accounts of OM Group and its consolidated subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Until March 29, 2013, we held a 55% interest in a joint venture (“GTL”) that had a smelter in the Democratic Republic of Congo (the “DRC”). The joint venture was consolidated because we had a controlling interest in the joint venture. Noncontrolling interest was recorded for the remaining 45% interest. This joint venture was transferred to the joint venture partners on March 29, 2013.

These financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position of the Company at March 31, 2013 and the results of its income, comprehensive income (loss) and cash flows for the three months ended March 31, 2013 and 2012 have been included. The balance sheet at December 31, 2012 has been derived from the audited consolidated financial statements at that date but does not include all of the information or notes required by U.S. generally accepted accounting principles for complete financial statements. Past operating results are not necessarily indicative of the results which may occur in future periods, and the interim period results are not necessarily indicative of the results to be expected for the full year. These Unaudited Condensed Consolidated Financial Statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2012.