Basis of Presentation and Principles of Consolidation	6 Months Ended
Jun. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying unaudited condensed consolidated balance sheet as of June 30, 2012, the unaudited condensed consolidated statements of operations and comprehensive income for the three and six months ended June 30, 2012 and 2011, and the unaudited condensed consolidated statements of cash flows for the six months ended June 30, 2012 and 2011 have been prepared on the same basis as our audited consolidated financial statements and include all adjustments necessary for the fair presentation of our consolidated results of operations, financial position and cash flows. Results for the interim periods are not necessarily indicative of results to be expected for the full year or any other future periods. The condensed consolidated balance sheet as of December 31, 2011 has been derived from our audited financial statements, which are included in our 2011 Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 8, 2012. The significant accounting policies and certain financial information that are normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States, but which are not required for interim reporting purposes, have been omitted. The unaudited condensed consolidated interim financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2011. Concentration of Credit Risks Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash investments, accounts receivable and other receivables. We place our cash and cash equivalents in short-term instruments with high quality financial institutions and limit the amount of credit exposure in any one financial instrument. A credit review is completed for new customers and ongoing credit evaluations of each customer's financial condition are performed and prepayment or other guarantees are required whenever deemed necessary. Credit limits given to customers are based on a risk assessment of their ability to pay and other factors. Alimentation Couche-Tard, Inc. (“Couche-Tard”) accounted for approximately 12.9% and 13.2% of our net sales in the three and six months ended June 30, 2012, respectively, and no single customer accounted for 10% or more of our total net sales during the three or six months ended June 30, 2011. In addition, no single customer accounted for 10% or more of our accounts receivables as of June 30, 2012 or December 31, 2011.

Basis of Presentation and Principles of Consolidation

The accompanying unaudited condensed consolidated balance sheet as of June 30, 2012, the unaudited condensed consolidated statements of operations and comprehensive income for the three and six months ended June 30, 2012 and 2011, and the unaudited condensed consolidated statements of cash flows for the six months ended June 30, 2012 and 2011 have been prepared on the same basis as our audited consolidated financial statements and include all adjustments necessary for the fair presentation of our consolidated results of operations, financial position and cash flows. Results for the interim periods are not necessarily indicative of results to be expected for the full year or any other future periods. The condensed consolidated balance sheet as of December 31, 2011 has been derived from our audited financial statements, which are included in our 2011 Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on March 8, 2012.

The significant accounting policies and certain financial information that are normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States, but which are not required for interim reporting purposes, have been omitted. The unaudited condensed consolidated interim financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2011.

Concentration of Credit Risks

Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash investments, accounts receivable and other receivables. We place our cash and cash equivalents in short-term instruments with high quality financial institutions and limit the amount of credit exposure in any one financial instrument.

A credit review is completed for new customers and ongoing credit evaluations of each customer's financial condition are performed and prepayment or other guarantees are required whenever deemed necessary. Credit limits given to customers are based on a risk assessment of their ability to pay and other factors. Alimentation Couche-Tard, Inc. (“Couche-Tard”) accounted for approximately 12.9% and 13.2% of our net sales in the three and six months ended June 30, 2012, respectively, and no single customer accounted for 10% or more of our total net sales during the three or six months ended June 30, 2011. In addition, no single customer accounted for 10% or more of our accounts receivables as of June 30, 2012 or December 31, 2011.