Condensed Statements of Financial Condition (unaudited) (Parenthetical)	Sep. 30, 2014	Dec. 31, 2013
Partners' capital:
General Partner: units issued (in shares)	100,000	100,000
General Partner: units outstanding (in shares)	100,000	100,000
Limited partners: units issued (in shares)	97,060,178	95,928,494
Limited partners: units outstanding (in shares)	97,060,178	95,928,494