v2.4.0.8

Statements of Changes in Shareholders' Equity (Parenthetical) | 3 Months Ended
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Mar. 31, 2014
ProShares UltraShort DJ-UBS Crude Oil [Member] |
Addition, shares | 7,700,000
Redemption, shares | 4,600,000
Net addition (redemption), shares | 3,100,000
ProShares UltraShort DJ-UBS Natural Gas [Member] |
Addition, shares | 2,100,000
Redemption, shares | 750,000
Net addition (redemption), shares | 1,350,000
ProShares UltraShort Gold [Member] |
Addition, shares | 300,000
Redemption, shares | 350,000
Net addition (redemption), shares | (50,000)
ProShares UltraShort Silver [Member] |
Addition, shares | 550,000
Redemption, shares | 950,000
Net addition (redemption), shares | (400,000)
ProShares Short Euro [Member] |
Redemption, shares | 50,000
Net addition (redemption), shares | (50,000)
ProShares UltraShort Australian Dollar [Member] |
Redemption, shares | 100,000
Net addition (redemption), shares | (100,000)
ProShares UltraShort Euro [Member] |
Addition, shares | 200,000
Redemption, shares | 450,000
Net addition (redemption), shares | (250,000)
ProShares UltraShort Yen [Member] |
Addition, shares | 150,000
Redemption, shares | 2,450,000
Net addition (redemption), shares | (2,300,000)
ProShares Ultra DJ-UBS Crude Oil [Member] |
Addition, shares | 4,350,000
Redemption, shares | 5,850,000
Net addition (redemption), shares | (1,500,000)
ProShares Ultra DJ-UBS Natural Gas [Member] |
Addition, shares | 200,000
Redemption, shares | 1,350,000
Net addition (redemption), shares | (1,150,000)
ProShares Ultra Gold [Member] |
Addition, shares | 100,000
Redemption, shares | 400,000
Net addition (redemption), shares | (300,000)
ProShares Ultra Silver [Member] |
Addition, shares | 787,500
Redemption, shares | 740,974
Net addition (redemption), shares | 46,526
ProShares VIX Short-Term Futures ETF [Member] |
Addition, shares | 1,475,000
Redemption, shares | 6,775,000
Net addition (redemption), shares | (5,300,000)
ProShares VIX Mid-Term Futures ETF [Member] |
Addition, shares | 1,100,000
Redemption, shares | 625,000
Net addition (redemption), shares | 475,000
ProShares Ultra VIX Short-Term Futures ETF [Member] |
Addition, shares | 4,775,000
Redemption, shares | 2,877,290
Net addition (redemption), shares | 1,897,710
ProShares Short VIX Short-Term Futures ETF [Member] |
Addition, shares | 2,850,000
Redemption, shares | 1,500,000
Net addition (redemption), shares | 1,350,000
ProShares Trust II [Member] |
Addition, shares | 26,637,500
Redemption, shares | 29,818,264
Net addition (redemption), shares | (3,180,764)

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- Definition Net addition (redemption) of shares, number of shares. + References No definition available. + Details
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- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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