v3.8.0.1

Financial Highlights - Financial Highlights for the Limited Partner Class (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Per Unit Performance (for a unit outstanding throughout the period):
Net realized and unrealized gains (losses)	$ 0.24	$ (0.40)	$ (0.64)	$ 0.47
Net investment loss	(0.11)	(0.15)	(0.36)	(0.44)
Net increase (decrease) for the period	0.13	(0.55)	(1.00)	0.03
Net asset value per Unit, beginning of period	9.79	12.12	10.92	11.54
Net asset value per Unit, end of period	$ 9.92	$ 11.57	$ 9.92	$ 11.57
Ratios to Average Limited Partners' Capital:
Net investment loss	(4.40%)	(5.10%)	(4.70%)	(5.10%)
Operating expenses before incentive fees	5.20%	5.20%	5.20%	5.20%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Operating expenses after incentive fees	5.20%	5.20%	5.20%	5.20%
Total return:
Total return before incentive fees	1.30%	(4.50%)	(9.20%)	0.30%
Incentive fees	0.00%	0.00%	0.00%	0.00%
Total return after incentive fees	1.30%	(4.50%)	(9.20%)	0.30%

Percentage of expense, after incentive allocation, to average net assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 205
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=25866437&loc=d3e10342-115837

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Percentage, before incentive allocation, of expense to average net assets.

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Per share or unit amount of realized and unrealized gain (loss) on investment.

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-Name Accounting Standards Codification
-Topic 946
-SubTopic 205
-Section 50
-Paragraph 7
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Percentage of incentive fee expense to average net assets.

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Per share or unit amount of investment income (loss) and realized and unrealized gain (loss) on investment.

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Per share or unit amount, after investment expense, of dividend and interest investment income (loss).

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Percentage of investment income (loss) to average net assets.

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Percentage increase (decrease), after deduction of incentive fee, in fund net asset value. Includes, but is not limited to, interest and dividend income (loss) and realized and unrealized gain (loss).

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Percentage increase (decrease), before deduction of incentive fee, in fund net asset value. Includes, but is not limited to, interest and dividend income (loss) and realized and unrealized gain (loss).

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Net asset value per share or per unit of investments in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure.

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MORGAN STANLEY SMITH BARNEY SPECTRUM STRATEGIC LP 10-Q