Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Net Unrealized Gains And Losses on Open Contracts, Disclosures [Line Items]

Net Unrealized Gain (Loss) on Open Contracts

Spectrum Select

	Net Unrealized Gains on Open Contracts						Longest Maturities
Year	Exchange-Traded		Off-Exchange-Traded		Total		Exchange-Traded	Off-Exchange-Traded
	$		$		$
2012		2,503,274		48,080		2,551,354	Mar. 2017	Mar. 2013
2011		5,995,510		406,389		6,401,899	Mar. 2016	Mar. 2012

Morgan Stanley Smith Barney Spectrum Currency and Commodity L.P. [Member]

Net Unrealized Gains And Losses on Open Contracts, Disclosures [Line Items]

Net Unrealized Gain (Loss) on Open Contracts

The net unrealized gains (losses) on open contracts at December 31, reported as a component of "Trading Equity" on the Statements of Financial Condition, and their longest contract maturities were as follows:

Spectrum Currency

	Net Unrealized Gains (Losses) on Open Contracts								Longest Maturities
Year	Exchange-Traded		Off-Exchange-Traded			Total			Exchange-Traded		Off-Exchange-Traded
	$		$			$
2012		–		43,205			43,205			–	Feb. 2013
2011		–		(88,387	)		(88,387	)		–	Mar. 2012

Morgan Stanley Smith Barney Spectrum Global Balanced L.P. [Member]

Net Unrealized Gains And Losses on Open Contracts, Disclosures [Line Items]

Net Unrealized Gain (Loss) on Open Contracts

Spectrum Global Balanced

	Net Unrealized Gains (Losses) on Open Contracts							Longest Maturities
Year	Exchange-Traded		Off-Exchange-Traded			Total		Exchange-Traded	Off-Exchange-Traded
	$		$			$
2012		951,801		29,978			981,779	Dec. 2014	Feb. 2013
2011		1,229,274		(8,497	)		1,220,777	Dec. 2013	Jan. 2012

Morgan Stanley Smith Barney Spectrum Technical L.P. [Member]

Net Unrealized Gains And Losses on Open Contracts, Disclosures [Line Items]

Net Unrealized Gain (Loss) on Open Contracts

Spectrum Technical

	Net Unrealized Gains (Losses) on Open Contracts								Longest Maturities
Year	Exchange-Traded			Off-Exchange-Traded		Total			Exchange-Traded	Off-Exchange-Traded
	$			$		$
2012		(1,651,077	)		609,533		(1,041,544	)	Jun. 2017	Apr. 2013
2011		8,196,777			569,394		8,766,171		Mar. 2015	Mar. 2012