CONTRACTS AND AGREEMENTS (Additional Information) (Details)
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12 Months Ended |
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Dec. 31, 2016
USD ($)
$ / Contracts
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|---|
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Annual Fee for transfer agency services |
$ 20,000
|
| Maximum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Annual Fee for transfer agency services |
75,000
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| Transaction fees per transaction |
$ 15
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| Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts | $ / Contracts |
8
|
| Minimum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Annual Fee for transfer agency services |
$ 75,000
|
| Transaction fees per transaction |
$ 7
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| Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts | $ / Contracts |
7
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| First $500 million of USL's, USOF's, USNG's, UGA's, USDHO's, USSO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Fee percentage |
0.06%
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| Base amount for determining fee percentage |
$ 500,000,000
|
| USL's, USOF's, USNG's, UGA's, USDHO's, USSO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than $500 million but less than $1 billion |
|
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
|
| Fee percentage |
0.0465%
|
| USL's, USOF's, USNG's, UGA's, USDHO's, USSO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than $500 million but less than $1 billion | Maximum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Base amount for determining fee percentage |
$ 1,000,000,000
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| USL's, USOF's, USNG's, UGA's, USDHO's, USSO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than $500 million but less than $1 billion | Minimum |
|
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
|
| Base amount for determining fee percentage |
$ 500,000,000
|
| USL's, USOF's, USNG's, UGA's, USDHO's, USSO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets exceed $1 billion |
|
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
|
| Fee percentage |
0.035%
|
| Base amount for determining fee percentage |
$ 1,000,000,000
|
| Marketing Agreement | Maximum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Fee percentage |
10.00%
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| Marketing Agreement | USL's assets up to $3 billion |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Fee percentage |
0.06%
|
| Marketing Agreement | USL's assets up to $3 billion | Minimum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Base amount for determining fee percentage |
$ 3,000,000,000
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| Marketing Agreement | USL's assets in excess of $3 billion |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Fee percentage |
0.04%
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| Marketing Agreement | USL's assets in excess of $3 billion | Maximum |
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| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] |
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| Base amount for determining fee percentage |
$ 3,000,000,000
|