Financial Highlights - Per Share Operating Performance (Detail) - $ / shares
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3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| ProShares Short VIX Short-Term Futures ETF [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 45.78
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$ 45.79
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$ 55.48
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$ 50.03
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| Net investment income (loss) |
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0.23
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0.23
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0.44
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0.51
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| Net realized and unrealized gain (loss) |
[1] |
11.26
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(3.4)
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1.35
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(7.92)
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| Change in net asset value from operations |
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11.49
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(3.17)
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1.79
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(7.41)
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| Net asset value, ending balance |
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57.27
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42.62
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57.27
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42.62
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| Market value per share, beginning balance |
[2] |
45.8
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45.76
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55.38
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50.06
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| Market value per share, ending balance |
[2] |
$ 57.26
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$ 42.6
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$ 57.26
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$ 42.6
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| Total Return, at net asset value |
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25.10%
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[3] |
(6.90%)
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[4] |
3.20%
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[3] |
(14.80%)
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[4] |
| Total Return, at market value |
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25.00%
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[3] |
(6.90%)
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[4] |
3.40%
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[3] |
(14.90%)
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[4] |
| Ratios to Average Net Assets |
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| Expense ratio |
[5],[6] |
1.15%
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1.18%
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1.16%
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1.19%
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| Net investment income gain (loss) |
[5] |
1.77%
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2.40%
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1.69%
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2.43%
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| ProShares Ultra Bloomberg Crude Oil [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 38.79
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$ 27.13
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$ 19.3
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$ 27.49
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| Net investment income (loss) |
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0.27
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0.12
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0.29
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0.28
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| Net realized and unrealized gain (loss) |
[1] |
(6.54)
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(4.76)
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12.93
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(5.28)
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| Change in net asset value from operations |
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(6.27)
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(4.64)
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13.22
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(5)
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| Net asset value, ending balance |
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32.52
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22.49
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32.52
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22.49
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| Market value per share, beginning balance |
[2] |
39.3
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27.06
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19.32
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27.5
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| Market value per share, ending balance |
[2] |
$ 32.95
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$ 22.41
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$ 32.95
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$ 22.41
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| Total Return, at net asset value |
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(16.20%)
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[3] |
(17.10%)
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[4] |
68.50%
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[3] |
(18.20%)
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[4] |
| Total Return, at market value |
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(16.20%)
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[3] |
(17.20%)
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[4] |
70.50%
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[3] |
(18.50%)
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[4] |
| Ratios to Average Net Assets |
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| Expense ratio |
[5],[6] |
1.00%
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1.01%
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1.02%
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|
1.00%
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| Net investment income gain (loss) |
[5] |
2.50%
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2.22%
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1.80%
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2.34%
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| ProShares Ultra Bloomberg Natural Gas [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
[7] |
$ 32.06
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$ 170.57
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$ 45.1
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$ 109.67
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| Net investment income (loss) |
[7] |
0.11
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0.61
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0.26
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1.46
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| Net realized and unrealized gain (loss) |
[1],[7] |
(4.5)
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(78.49)
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(17.69)
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(18.44)
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| Change in net asset value from operations |
[7] |
(4.39)
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(77.88)
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(17.43)
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(16.98)
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| Net asset value, ending balance |
[7] |
27.67
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92.69
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27.67
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92.69
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| Market value per share, beginning balance |
[2],[7] |
32.24
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171.52
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45.8
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111.64
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| Market value per share, ending balance |
[2],[7] |
$ 27.44
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$ 92.16
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$ 27.44
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$ 92.16
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| Total Return, at net asset value |
[7] |
(13.70%)
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[3] |
(45.70%)
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[4] |
(38.60%)
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[3] |
(15.50%)
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[4] |
| Total Return, at market value |
[7] |
(14.90%)
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[3] |
(46.30%)
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[4] |
(40.10%)
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[3] |
(17.50%)
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[4] |
| Ratios to Average Net Assets |
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| Expense ratio |
[5],[6],[7] |
1.42%
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1.48%
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1.39%
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1.47%
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| Net investment income gain (loss) |
[5],[7] |
1.65%
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2.12%
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1.60%
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2.31%
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| ProShares Ultra Euro [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 12.7
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$ 11.36
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$ 13.17
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$ 10.46
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| Net investment income (loss) |
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0.08
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0.08
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0.15
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0.16
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| Net realized and unrealized gain (loss) |
[1] |
(0.41)
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1.96
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(0.95)
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2.78
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| Change in net asset value from operations |
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(0.33)
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2.04
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(0.8)
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2.94
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| Net asset value, ending balance |
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12.37
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13.4
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12.37
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13.4
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| Market value per share, beginning balance |
[2] |
12.72
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11.38
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13.16
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10.45
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| Market value per share, ending balance |
[2] |
$ 12.36
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$ 13.37
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$ 12.36
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$ 13.37
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| Total Return, at net asset value |
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(2.60%)
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[3] |
17.90%
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[4] |
(6.10%)
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[3] |
28.10%
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[4] |
| Total Return, at market value |
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(2.80%)
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[3] |
17.50%
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[4] |
(6.10%)
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[3] |
27.90%
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[4] |
| Ratios to Average Net Assets |
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| Expense ratio |
[5],[6] |
0.95%
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0.95%
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0.95%
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|
0.95%
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| Net investment income gain (loss) |
[5] |
2.49%
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2.65%
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2.26%
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2.67%
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| ProShares Ultra Gold [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 60.57
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$ 32.04
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[7] |
$ 55.91
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$ 23.36
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[7] |
| Net investment income (loss) |
|
0.37
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|
0.27
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[7] |
0.72
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|
0.48
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[7] |
| Net realized and unrealized gain (loss) |
[1] |
(16.89)
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|
2.09
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[7] |
(12.58)
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|
10.56
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[7] |
| Change in net asset value from operations |
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(16.52)
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2.36
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[7] |
(11.86)
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|
11.04
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[7] |
| Net asset value, ending balance |
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44.05
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34.4
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[7] |
44.05
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34.4
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[7] |
| Market value per share, beginning balance |
[2] |
61.46
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|
32.18
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[7] |
55.52
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23.37
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[7] |
| Market value per share, ending balance |
[2] |
$ 43.87
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$ 34.66
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[7] |
$ 43.87
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$ 34.66
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[7] |
| Total Return, at net asset value |
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(27.30%)
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[3] |
7.40%
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[4],[7] |
(21.20%)
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[3] |
47.20%
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[4],[7] |
| Total Return, at market value |
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(28.60%)
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[3] |
7.70%
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[4],[7] |
(21.00%)
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[3] |
48.30%
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[4],[7] |
| Ratios to Average Net Assets |
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| Expense ratio |
[5],[6] |
0.96%
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|
0.97%
|
[7] |
0.96%
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|
0.97%
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[7] |
| Net investment income gain (loss) |
[5] |
2.59%
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|
3.09%
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[7] |
2.31%
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|
3.11%
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[7] |
| ProShares Ultra Silver [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 117.67
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|
$ 45.74
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$ 155.95
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|
$ 33.56
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| Net investment income (loss) |
|
0.7
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|
0.31
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|
1.36
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|
0.59
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| Net realized and unrealized gain (loss) |
[1] |
(49.72)
|
|
1.02
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(88.66)
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|
12.92
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| Change in net asset value from operations |
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(49.02)
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|
1.33
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(87.3)
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|
13.51
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| Net asset value, ending balance |
|
68.65
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|
47.07
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68.65
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|
47.07
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| Market value per share, beginning balance |
[2] |
119.51
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|
46.16
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|
155.12
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|
33.67
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| Market value per share, ending balance |
[2] |
$ 68.01
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|
$ 47.49
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$ 68.01
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$ 47.49
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| Total Return, at net asset value |
|
(41.70%)
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[3] |
2.90%
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[4] |
(56.00%)
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[3] |
40.20%
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[4] |
| Total Return, at market value |
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(43.10%)
|
[3] |
2.90%
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[4] |
(56.20%)
|
[3] |
41.10%
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[4] |
| Ratios to Average Net Assets |
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|
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| Expense ratio |
[5],[6] |
0.97%
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|
0.99%
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|
0.97%
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|
0.98%
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| Net investment income gain (loss) |
[5] |
2.54%
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|
2.91%
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|
1.95%
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|
2.85%
|
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| ProShares Ultra VIX Short-Term Futures ETF [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 52.1
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$ 117.22
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[7] |
$ 35.86
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$ 103.86
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[7] |
| Net investment income (loss) |
|
0.07
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|
0.36
|
[7] |
0.15
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|
0.66
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[7] |
| Net realized and unrealized gain (loss) |
[1] |
(27.36)
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|
(24.11)
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[7] |
(11.2)
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|
(11.05)
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[7] |
| Change in net asset value from operations |
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(27.29)
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|
(23.75)
|
[7] |
(11.05)
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|
(10.39)
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[7] |
| Net asset value, ending balance |
|
24.81
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|
93.47
|
[7] |
24.81
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|
93.47
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[7] |
| Market value per share, beginning balance |
[2] |
52.3
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|
117.15
|
[7] |
35.93
|
|
103.6
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[7] |
| Market value per share, ending balance |
[2] |
$ 24.89
|
|
$ 93.75
|
[7] |
$ 24.89
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|
$ 93.75
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[7] |
| Total Return, at net asset value |
|
(52.40%)
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[3] |
(20.30%)
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[4],[7] |
(30.80%)
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[3] |
(10.00%)
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[4],[7] |
| Total Return, at market value |
|
(52.40%)
|
[3] |
(20.00%)
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[4],[7] |
(30.70%)
|
[3] |
(9.50%)
|
[4],[7] |
| Ratios to Average Net Assets |
|
|
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| Expense ratio |
[5],[6] |
1.73%
|
|
1.73%
|
[7] |
1.73%
|
|
1.89%
|
[7] |
| Net investment income gain (loss) |
[5] |
0.85%
|
|
1.21%
|
[7] |
0.85%
|
|
1.21%
|
[7] |
| ProShares Ultra Yen [Member] |
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
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$ 18.37
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|
$ 21.9
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|
$ 19.08
|
|
$ 20.23
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| Net investment income (loss) |
|
0.12
|
|
0.15
|
|
0.21
|
|
0.3
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| Net realized and unrealized gain (loss) |
[1] |
(1.16)
|
|
1.27
|
|
(1.96)
|
|
2.79
|
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| Change in net asset value from operations |
|
(1.04)
|
|
1.42
|
|
(1.75)
|
|
3.09
|
|
| Net asset value, ending balance |
|
17.33
|
|
23.32
|
|
17.33
|
|
23.32
|
|
| Market value per share, beginning balance |
[2] |
18.38
|
|
21.89
|
|
19.06
|
|
20.35
|
|
| Market value per share, ending balance |
[2] |
$ 17.38
|
|
$ 23.23
|
|
$ 17.38
|
|
$ 23.23
|
|
| Total Return, at net asset value |
|
(5.70%)
|
[3] |
6.50%
|
[4] |
(9.20%)
|
[3] |
15.30%
|
[4] |
| Total Return, at market value |
|
(5.40%)
|
[3] |
6.10%
|
[4] |
(8.80%)
|
[3] |
14.20%
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[6] |
0.95%
|
|
0.95%
|
|
0.95%
|
|
0.95%
|
|
| Net investment income gain (loss) |
[5] |
2.60%
|
|
2.64%
|
|
2.29%
|
|
2.67%
|
|
| ProShares UltraShort Bloomberg Crude Oil [Member] |
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|
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| Investment Company, Financial Highlights [Line Items] |
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| Net asset value, beginning balance |
[7] |
$ 33.73
|
|
$ 66.95
|
|
$ 78.56
|
|
$ 67.73
|
|
| Net investment income (loss) |
[7] |
0.15
|
|
0.5
|
|
0.31
|
|
0.95
|
|
| Net realized and unrealized gain (loss) |
|
1.6
|
|
4.65
|
[1],[7] |
(43.39)
|
[1],[7] |
3.42
|
[1],[7] |
| Change in net asset value from operations |
[7] |
1.75
|
|
5.15
|
|
(43.08)
|
|
4.37
|
|
| Net asset value, ending balance |
[7] |
35.48
|
|
72.1
|
|
35.48
|
|
72.1
|
|
| Market value per share, beginning balance |
[2],[7] |
33.28
|
|
67.04
|
|
78.44
|
|
67.68
|
|
| Market value per share, ending balance |
[2],[7] |
$ 35.02
|
|
$ 72.24
|
|
$ 35.02
|
|
$ 72.24
|
|
| Total Return, at net asset value |
[7] |
5.20%
|
[3] |
7.70%
|
[4] |
(54.80%)
|
[3] |
6.50%
|
[4] |
| Total Return, at market value |
[7] |
5.20%
|
[3] |
7.80%
|
[4] |
(55.40%)
|
[3] |
6.70%
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[6],[7] |
1.11%
|
|
1.15%
|
|
1.11%
|
|
1.10%
|
|
| Net investment income gain (loss) |
[5],[7] |
2.07%
|
|
2.65%
|
|
2.03%
|
|
2.71%
|
|
| ProShares UltraShort Bloomberg Natural Gas [Member] |
|
|
|
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|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
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|
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| Net asset value, beginning balance |
|
$ 21.81
|
|
$ 19.7
|
|
$ 35.79
|
|
$ 43.61
|
|
| Net investment income (loss) |
|
0.1
|
|
0.14
|
|
0.14
|
|
0.29
|
|
| Net realized and unrealized gain (loss) |
[1] |
0.55
|
|
5.6
|
|
(13.47)
|
|
(18.46)
|
|
| Change in net asset value from operations |
|
0.65
|
|
5.74
|
|
(13.33)
|
|
(18.17)
|
|
| Net asset value, ending balance |
|
22.46
|
|
25.44
|
|
22.46
|
|
25.44
|
|
| Market value per share, beginning balance |
[2] |
21.71
|
|
19.57
|
|
35.27
|
|
42.74
|
|
| Market value per share, ending balance |
[2] |
$ 22.65
|
|
$ 25.61
|
|
$ 22.65
|
|
$ 25.61
|
|
| Total Return, at net asset value |
|
3.00%
|
[3] |
29.20%
|
[4] |
(37.20%)
|
[3] |
(41.70%)
|
[4] |
| Total Return, at market value |
|
4.30%
|
[3] |
30.90%
|
[4] |
(35.80%)
|
[3] |
(40.10%)
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[6] |
1.51%
|
|
1.49%
|
|
1.61%
|
|
1.46%
|
|
| Net investment income gain (loss) |
[5] |
1.60%
|
|
2.34%
|
|
1.29%
|
|
2.40%
|
|
| ProShares UltraShort Euro [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 29.59
|
|
$ 32.3
|
|
$ 28.4
|
|
$ 34.91
|
|
| Net investment income (loss) |
|
0.19
|
|
0.2
|
|
0.33
|
|
0.43
|
|
| Net realized and unrealized gain (loss) |
[1] |
0.88
|
|
(5.05)
|
|
1.93
|
|
(7.89)
|
|
| Change in net asset value from operations |
|
1.07
|
|
(4.85)
|
|
2.26
|
|
(7.46)
|
|
| Net asset value, ending balance |
|
30.66
|
|
27.45
|
|
30.66
|
|
27.45
|
|
| Market value per share, beginning balance |
[2] |
29.6
|
|
32.27
|
|
28.33
|
|
34.92
|
|
| Market value per share, ending balance |
[2] |
$ 30.62
|
|
$ 27.48
|
|
$ 30.62
|
|
$ 27.48
|
|
| Total Return, at net asset value |
|
3.60%
|
[3] |
(15.00%)
|
[4] |
8.00%
|
[3] |
(21.40%)
|
[4] |
| Total Return, at market value |
|
3.40%
|
[3] |
(14.80%)
|
[4] |
8.10%
|
[3] |
(21.30%)
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[6] |
0.95%
|
|
0.95%
|
|
0.95%
|
|
0.95%
|
|
| Net investment income gain (loss) |
[5] |
2.58%
|
|
2.70%
|
|
2.31%
|
|
2.71%
|
|
| ProShares UltraShort Gold [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 20.49
|
|
$ 50.89
|
[7] |
$ 25.98
|
|
$ 70.22
|
[7] |
| Net investment income (loss) |
|
0.13
|
|
0.27
|
[7] |
0.22
|
|
0.58
|
[7] |
| Net realized and unrealized gain (loss) |
[1] |
6.26
|
|
(6.27)
|
[7] |
0.68
|
|
(25.91)
|
[7] |
| Change in net asset value from operations |
|
6.39
|
|
(6)
|
[7] |
0.9
|
|
(25.33)
|
[7] |
| Net asset value, ending balance |
|
26.88
|
|
44.89
|
[7] |
26.88
|
|
44.89
|
[7] |
| Market value per share, beginning balance |
[2] |
20.18
|
|
50.68
|
[7] |
26.15
|
|
70.32
|
[7] |
| Market value per share, ending balance |
[2] |
$ 26.98
|
|
$ 44.52
|
[7] |
$ 26.98
|
|
$ 44.52
|
[7] |
| Total Return, at net asset value |
|
31.20%
|
[3] |
(11.80%)
|
[4],[7] |
3.50%
|
[3] |
(36.10%)
|
[4],[7] |
| Total Return, at market value |
|
33.70%
|
[3] |
(12.20%)
|
[4],[7] |
3.20%
|
[3] |
(36.70%)
|
[4],[7] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[6] |
0.97%
|
|
1.00%
|
[7] |
0.97%
|
|
0.99%
|
[7] |
| Net investment income gain (loss) |
[5] |
2.47%
|
|
2.41%
|
[7] |
2.15%
|
|
2.43%
|
[7] |
| ProShares UltraShort Silver [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 22.87
|
|
$ 296.04
|
[7] |
$ 53.23
|
|
$ 423.96
|
[7] |
| Net investment income (loss) |
|
0.13
|
|
1.43
|
[7] |
0.19
|
|
2.89
|
[7] |
| Net realized and unrealized gain (loss) |
[1] |
7.5
|
|
(37.14)
|
[7] |
(22.92)
|
|
(166.52)
|
[7] |
| Change in net asset value from operations |
|
7.63
|
|
(35.71)
|
[7] |
(22.73)
|
|
(163.63)
|
[7] |
| Net asset value, ending balance |
|
30.5
|
|
260.33
|
[7] |
30.5
|
|
260.33
|
[7] |
| Market value per share, beginning balance |
[2] |
22.51
|
|
293.3
|
[7] |
53.4
|
|
420
|
[7] |
| Market value per share, ending balance |
[2] |
$ 30.79
|
|
$ 258.1
|
[7] |
$ 30.79
|
|
$ 258.1
|
[7] |
| Total Return, at net asset value |
|
33.40%
|
[3] |
(12.10%)
|
[4],[7] |
(42.70%)
|
[3] |
(38.60%)
|
[4],[7] |
| Total Return, at market value |
|
36.80%
|
[3] |
(12.00%)
|
[4],[7] |
(42.30%)
|
[3] |
(38.60%)
|
[4],[7] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[8] |
0.99%
|
|
1.03%
|
[7] |
1.00%
|
|
1.02%
|
[7] |
| Net investment income gain (loss) |
[5] |
2.38%
|
|
1.93%
|
[7] |
1.67%
|
|
1.84%
|
[7] |
| ProShares UltraShort Yen [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 53.03
|
|
$ 44.29
|
|
$ 50.94
|
|
$ 47.66
|
|
| Net investment income (loss) |
|
0.34
|
|
0.29
|
|
0.6
|
|
0.59
|
|
| Net realized and unrealized gain (loss) |
[1] |
3.33
|
|
(3.23)
|
|
5.16
|
|
(6.9)
|
|
| Change in net asset value from operations |
|
3.67
|
|
(2.94)
|
|
5.76
|
|
(6.31)
|
|
| Net asset value, ending balance |
|
56.7
|
|
41.35
|
|
56.7
|
|
41.35
|
|
| Market value per share, beginning balance |
[2] |
52.98
|
|
44.3
|
|
50.9
|
|
46.68
|
|
| Market value per share, ending balance |
[2] |
$ 56.62
|
|
$ 41.38
|
|
$ 56.62
|
|
$ 41.38
|
|
| Total Return, at net asset value |
|
6.90%
|
[3] |
(6.60%)
|
[4] |
11.30%
|
[3] |
(13.20%)
|
[4] |
| Total Return, at market value |
|
6.90%
|
[3] |
(6.60%)
|
[4] |
11.20%
|
[3] |
(11.40%)
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[8] |
0.95%
|
|
0.95%
|
|
0.95%
|
|
0.95%
|
|
| Net investment income gain (loss) |
[5] |
2.55%
|
|
2.78%
|
|
2.30%
|
|
2.76%
|
|
| ProShares VIX Mid-Term Futures ETF [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 17.21
|
|
$ 15.84
|
|
$ 15.24
|
|
$ 14.51
|
|
| Net investment income (loss) |
|
0.09
|
|
0.12
|
|
0.17
|
|
0.21
|
|
| Net realized and unrealized gain (loss) |
[1] |
(2.97)
|
|
0.77
|
|
(1.08)
|
|
2.01
|
|
| Change in net asset value from operations |
|
(2.88)
|
|
0.89
|
|
(0.91)
|
|
2.22
|
|
| Net asset value, ending balance |
|
14.33
|
|
16.73
|
|
14.33
|
|
16.73
|
|
| Market value per share, beginning balance |
[2] |
17.15
|
|
15.85
|
|
15.27
|
|
14.46
|
|
| Market value per share, ending balance |
[2] |
$ 14.35
|
|
$ 16.76
|
|
$ 14.35
|
|
$ 16.76
|
|
| Total Return, at net asset value |
|
(16.70%)
|
[3] |
5.60%
|
[4] |
(6.00%)
|
[3] |
15.30%
|
[4] |
| Total Return, at market value |
|
(16.30%)
|
[3] |
5.70%
|
[4] |
(6.00%)
|
[3] |
15.90%
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[8] |
0.95%
|
|
0.99%
|
|
0.96%
|
|
1.03%
|
|
| Net investment income gain (loss) |
[5] |
2.23%
|
|
2.74%
|
|
2.12%
|
|
2.70%
|
|
| ProShares VIX Short-Term Futures ETF [Member] |
|
|
|
|
|
|
|
|
|
| Investment Company, Financial Highlights [Line Items] |
|
|
|
|
|
|
|
|
|
| Net asset value, beginning balance |
|
$ 34.28
|
|
$ 50.29
|
|
$ 25.73
|
|
$ 45.05
|
|
| Net investment income (loss) |
|
0.11
|
|
0.32
|
|
0.24
|
|
0.55
|
|
| Net realized and unrealized gain (loss) |
[1] |
(13.12)
|
|
(3.82)
|
|
(4.7)
|
|
1.19
|
|
| Change in net asset value from operations |
|
(13.01)
|
|
(3.5)
|
|
(4.46)
|
|
1.74
|
|
| Net asset value, ending balance |
|
21.27
|
|
46.79
|
|
21.27
|
|
46.79
|
|
| Market value per share, beginning balance |
[2] |
34.35
|
|
50.26
|
|
25.64
|
|
45.02
|
|
| Market value per share, ending balance |
[2] |
$ 21.29
|
|
$ 46.88
|
|
$ 21.29
|
|
$ 46.88
|
|
| Total Return, at net asset value |
|
(38.00%)
|
[3] |
(7.00%)
|
[4] |
(17.30%)
|
[3] |
3.90%
|
[4] |
| Total Return, at market value |
|
(38.00%)
|
[3] |
(6.70%)
|
[4] |
(17.00%)
|
[3] |
4.10%
|
[4] |
| Ratios to Average Net Assets |
|
|
|
|
|
|
|
|
|
| Expense ratio |
[5],[8] |
1.14%
|
|
1.26%
|
|
1.10%
|
|
1.34%
|
|
| Net investment income gain (loss) |
[5] |
1.74%
|
|
2.27%
|
|
1.77%
|
|
2.24%
|
|
|
|