Statements of Financial Condition (Parenthetical) - shares	Dec. 31, 2018	Dec. 31, 2017
Class Z Redeemable Units [Member]
General Partner Capital, Redeemable units outstanding	6,495.6793	8,552.3863
Limited Partners Capital, Redeemable units outstanding	4,168.1552	3,021.4072
Class A Redeemable Units [Member]
Limited Partners Capital, Redeemable units outstanding	228,146.2478	272,051.1558

The number of limited partner units outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Name:	us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant