v2.4.0.8
Statement of Changes in Shareholders' Equity (Parenthetical)
6 Months Ended
Jun. 30, 2014
ProShares UltraShort Bloomberg Crude Oil [Member]
 
Addition, shares 14,600,000
Redemption, shares 7,950,000
Net addition (redemption), shares 6,650,000
ProShares UltraShort Bloomberg Natural Gas [Member]
 
Addition, shares 2,400,000
Redemption, shares 1,500,000
Net addition (redemption), shares 900,000
ProShares UltraShort Gold [Member]
 
Addition, shares 400,000
Redemption, shares 750,000
Net addition (redemption), shares (350,000)
ProShares UltraShort Silver [Member]
 
Addition, shares 700,000
Redemption, shares 1,250,000
Net addition (redemption), shares (550,000)
ProShares Short Euro [Member]
 
Addition, shares 200,000
Redemption, shares 50,000
Net addition (redemption), shares 150,000
ProShares UltraShort Australian Dollar [Member]
 
Redemption, shares 100,000
ProShares UltraShort Euro [Member]
 
Addition, shares 2,250,000
Redemption, shares 950,000
Net addition (redemption), shares 1,300,000
ProShares UltraShort Yen [Member]
 
Addition, shares 450,000
Redemption, shares 3,300,000
Net addition (redemption), shares (2,850,000)
ProShares Ultra Bloomberg Commodity [Member]
 
Addition, shares 50,000
ProShares Ultra Bloomberg Crude Oil [Member]
 
Addition, shares 5,200,000
Redemption, shares 7,150,000
Net addition (redemption), shares (1,950,000)
ProShares Ultra Bloomberg Natural Gas [Member]
 
Addition, shares 400,000
Redemption, shares 1,550,000
Net addition (redemption), shares (1,150,000)
ProShares Ultra Gold [Member]
 
Addition, shares 150,000
Redemption, shares 550,000
Net addition (redemption), shares (400,000)
ProShares Ultra Silver [Member]
 
Addition, shares 1,187,500
Redemption, shares 1,390,974
Net addition (redemption), shares (203,474)
ProShares Ultra Yen [Member]
 
Redemption, shares 50,000
ProShares VIX Short-Term Futures ETF [Member]
 
Addition, shares 3,875,000
Redemption, shares 8,175,000
Net addition (redemption), shares (4,300,000)
ProShares VIX Mid-Term Futures ETF [Member]
 
Addition, shares 1,850,000
Redemption, shares 1,875,000
Net addition (redemption), shares (25,000)
ProShares Ultra VIX Short-Term Futures ETF [Member]
 
Addition, shares 14,325,000
Redemption, shares 6,577,290
Net addition (redemption), shares 7,747,710
ProShares Short VIX Short-Term Futures ETF [Member]
 
Addition, shares 3,950,000
Redemption, shares 4,000,000
Net addition (redemption), shares (50,000)
ProShares Trust II [Member]
 
Addition, shares 51,987,500
Redemption, shares 47,168,264
Net addition (redemption), shares 4,819,236