Organization	9 Months Ended
Sep. 30, 2012
Organization [Abstract]
Organization	1. Organization Morgan Stanley Smith Barney Spectrum Currency and Commodity L.P. is a Delaware limited partnership organized in 1999 to engage primarily in the speculative trading of futures contracts, options on futures and forward contracts, and forward contracts on physical commodities and other commodity interests, including, but not limited to, foreign currencies, financial instruments, metals, energy, and agricultural products (collectively, "Futures Interests") (refer to Note 4, Financial Instruments). The Partnership is one of the Morgan Stanley Spectrum series of funds, comprised of the Partnership, Morgan Stanley Smith Barney Spectrum Global Balanced L.P., Morgan Stanley Smith Barney Spectrum Select L.P., Morgan Stanley Smith Barney Spectrum Strategic L.P., and Morgan Stanley Smith Barney Spectrum Technical L.P. (collectively, the "Spectrum Series"). Ceres Managed Futures LLC, a Delaware limited liability company, acts as a general partner ("Ceres" or the "General Partner") and commodity pool operator of the Partnership. Ceres is a wholly-owned subsidiary of Morgan Stanley Smith Barney Holdings LLC ("MSSBH"). MSSBH is majority-owned indirectly by Morgan Stanley and minority-owned indirectly by Citigroup Inc. As of September 26, 2012, Morgan Stanley Smith Barney LLC ("MSSB") is doing business as Morgan Stanley Wealth Management. This entity, where the Partnership continues to maintain a cash account previously acted as a non-clearing commodity broker for the Partnership. The clearing commodity broker is Morgan Stanley & Co. LLC ("MS&Co."). MS&Co. also acts as the counterparty on all trading of foreign currency forward contracts. Morgan Stanley Capital Group Inc. ("MSCG") acts as the counterparty on all trading of options on foreign currency forward contracts. Morgan Stanley Wealth Management is a principal subsidiary of MSSBH. MS&Co. and MSCG are wholly-owned subsidiaries of Morgan Stanley. The trading advisors to the Partnership are C-View International Limited ("C-View"), Flintlock Capital Asset Management, LLC ("Flintlock") and Krom River Investment Management (Cayman) Limited (together with its affiliate, Krom River Trading AG) ("Krom River") (each individually, a "Trading Advisor", or collectively, the "Trading Advisors"). Flintlock and Krom River manage the assets of the Partnership through its investments in FL Master Fund L.P. ("FL Master Fund") and KR Master Fund L.P. ("KR Master Fund"), respectively. Ceres is a general partner to FL Master Fund and KR Master Fund.

1. Organization

Morgan Stanley Smith Barney Spectrum Currency and Commodity L.P. is a Delaware limited partnership organized in 1999 to engage primarily in the speculative trading of futures contracts, options on futures and forward contracts, and forward contracts on physical commodities and other commodity interests, including, but not limited to, foreign currencies, financial instruments, metals, energy, and agricultural products (collectively, "Futures Interests") (refer to Note 4, Financial Instruments). The Partnership is one of the Morgan Stanley Spectrum series of funds, comprised of the Partnership, Morgan Stanley Smith Barney Spectrum Global Balanced L.P., Morgan Stanley Smith Barney Spectrum Select L.P., Morgan Stanley Smith Barney Spectrum Strategic L.P., and Morgan Stanley Smith Barney Spectrum Technical L.P. (collectively, the "Spectrum Series").

Ceres Managed Futures LLC, a Delaware limited liability company, acts as a general partner ("Ceres" or the "General Partner") and commodity pool operator of the Partnership. Ceres is a wholly-owned subsidiary of Morgan Stanley Smith Barney Holdings LLC ("MSSBH"). MSSBH is majority-owned indirectly by Morgan Stanley and minority-owned indirectly by Citigroup Inc. As of September 26, 2012, Morgan Stanley Smith Barney LLC ("MSSB") is doing business as Morgan Stanley Wealth Management. This entity, where the Partnership continues to maintain a cash account previously acted as a non-clearing commodity broker for the Partnership. The clearing commodity broker is Morgan Stanley & Co. LLC ("MS&Co."). MS&Co. also acts as the counterparty on all trading of foreign currency forward contracts. Morgan Stanley Capital Group Inc. ("MSCG") acts as the counterparty on all trading of options on foreign currency forward contracts. Morgan Stanley Wealth Management is a principal subsidiary of MSSBH. MS&Co. and MSCG are wholly-owned subsidiaries of Morgan Stanley. The trading advisors to the Partnership are C-View International Limited ("C-View"), Flintlock Capital Asset Management, LLC ("Flintlock") and Krom River Investment Management (Cayman) Limited (together with its affiliate, Krom River Trading AG) ("Krom River") (each individually, a "Trading Advisor", or collectively, the "Trading Advisors").

Flintlock and Krom River manage the assets of the Partnership through its investments in FL Master Fund L.P. ("FL Master Fund") and KR Master Fund L.P. ("KR Master Fund"), respectively. Ceres is a general partner to FL Master Fund and KR Master Fund.