|
Statements of Cash Flows (USD $)
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| ProShares Managed Futures Strategy [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
$ 82,137us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1],[2] |
|
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(74,111)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Decrease (Increase) in receivable on futures contracts |
(19,568)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Decrease (Increase) in Limitation by Sponsor |
(1,534)ck0001415311_DecreaseIncreaseInLimitationBySponsor
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Change in offering cost |
16,220ck0001415311_DecreaseIncreaseInOfferingCosts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Net cash provided by (used in) operating activities |
3,144us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
4,304,676us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Payment on shares redeemed |
(2,140,103)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Net cash provided by (used in) financing activities |
2,164,573us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Net increase (decrease) in cash |
2,167,717us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Cash, beginning of period |
6,135,185us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| Cash, end of period |
8,302,902us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[2] |
|
| ProShares VIX Short-Term Futures ETF [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(20,622,523)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
27,053,653us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
7,419,585ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
39,131,350ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(49,096,865)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
113,480,989ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Change in unrealized appreciation/depreciation on investments |
1,144ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
4,584ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Decrease (Increase) in receivable on futures contracts |
4,098,028ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
3,179,017ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Increase (Decrease) in management fee payable |
20,605ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(122,678)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Increase (Decrease) in payable on futures contracts |
|
|
3,088,786ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net cash provided by (used in) operating activities |
(58,180,026)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
185,815,701us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
84,542,261us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
42,065,649us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Payment on shares redeemed |
(25,891,554)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(230,347,582)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net cash provided by (used in) financing activities |
58,650,707us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(188,281,933)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net increase (decrease) in cash |
470,681us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(2,466,232)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Cash, beginning of period |
1,694,791us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
4,333,752us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Cash, end of period |
2,165,472us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
1,867,520us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| ProShares VIX Mid-Term Futures ETF [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(697,272)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(2,617,480)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(227,100)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(675,210)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(3,570,073)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(2,655,070)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Change in unrealized appreciation/depreciation on investments |
567ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(468)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Decrease (Increase) in receivable on futures contracts |
1,462,009ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
100,734ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Increase (Decrease) in management fee payable |
(1,158)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(3,141)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Increase (Decrease) in payable on futures contracts |
|
|
1,009,664ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net cash provided by (used in) operating activities |
(3,033,027)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(4,840,971)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
12,344,563us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
21,263,524us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Payment on shares redeemed |
(9,641,724)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(17,309,533)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net cash provided by (used in) financing activities |
2,702,839us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
3,953,991us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net increase (decrease) in cash |
(330,188)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(886,980)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Cash, beginning of period |
1,634,082us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
1,906,397us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Cash, end of period |
1,303,894us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
1,019,417us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| ProShares Short VIX Short-Term Futures ETF [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
45,686,713us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
1,930,964us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
29,744,690ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(11,354,850)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
224,055,795ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(63,929,582)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Change in unrealized appreciation/depreciation on investments |
(518)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(1,509)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Decrease (Increase) in receivable on futures contracts |
|
|
(5,880,498)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Increase (Decrease) in management fee payable |
(120,822)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
64,588ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Increase (Decrease) in payable on futures contracts |
(29,594,238)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
|
| Net cash provided by (used in) operating activities |
269,771,620us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(79,170,887)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
118,885,967us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
162,438,045us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Payment on shares redeemed |
(393,636,613)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(80,333,451)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net cash provided by (used in) financing activities |
(274,750,646)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
82,104,594us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net increase (decrease) in cash |
(4,979,026)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,933,707us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Cash, beginning of period |
9,122,219us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,153,370us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Cash, end of period |
4,143,193us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
5,087,077us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| ProShares Ultra VIX Short-Term Futures ETF [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(225,649,701)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(10,320,895)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
43,254,330ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(26,944,250)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(387,260,864)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(64,317,479)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Change in unrealized appreciation/depreciation on investments |
(12)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(2,542)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Decrease (Increase) in receivable on futures contracts |
5,180,769ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
|
| Increase (Decrease) in management fee payable |
260,562ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
44,327ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Increase (Decrease) in payable on futures contracts |
|
|
21,168,707ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net cash provided by (used in) operating activities |
(564,214,916)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(80,372,132)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
970,798,327us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
302,055,786us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Payment on shares redeemed |
(404,841,950)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(220,376,697)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net cash provided by (used in) financing activities |
565,956,377us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
81,679,089us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net increase (decrease) in cash |
1,741,461us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
1,306,957us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Cash, beginning of period |
3,737,292us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
2,240,977us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Cash, end of period |
5,478,753us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
3,547,934us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| ProShares UltraShort Bloomberg Commodity [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
553,657us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(513,697)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
(757,219)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
967,212ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Change in unrealized appreciation/depreciation on investments |
290,574ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(129,989)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Increase (Decrease) in management fee payable |
685ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(394)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net cash provided by (used in) operating activities |
87,697us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
323,132us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Cash flow from financing activities |
|
|
|
| Net increase (decrease) in cash |
87,697us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
323,132us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Cash, beginning of period |
467,766us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
374,245us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Cash, end of period |
555,463us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
697,377us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| ProShares UltraShort Bloomberg Crude Oil [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
45,462,935us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(16,265,435)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(8,301,630)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(1,750,925)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(188,145,656)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(40,675,851)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Change in unrealized appreciation/depreciation on investments |
166,871ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(1,638,091)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Decrease (Increase) in receivable on futures contracts |
(3,528,588)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
1,158,118ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Increase (Decrease) in management fee payable |
109,424ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
58,766ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net cash provided by (used in) operating activities |
(154,236,644)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(59,113,418)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
372,664,934us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
214,164,184us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Payment on shares redeemed |
(212,552,651)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(152,942,823)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net cash provided by (used in) financing activities |
160,112,283us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
61,221,361us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net increase (decrease) in cash |
5,875,639us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
2,107,943us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Cash, beginning of period |
994,268us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
1,872,915us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Cash, end of period |
6,869,907us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
3,980,858us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| ProShares UltraShort Bloomberg Natural Gas [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
2,056,229us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(5,929,304)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
2,697,794ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(8,719,700)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(306,963)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(38,476,294)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Change in unrealized appreciation/depreciation on investments |
175ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(2,243)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Decrease (Increase) in receivable on futures contracts |
923,531ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(1,231,947)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Increase (Decrease) in management fee payable |
(1,889)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
54,169ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Increase (Decrease) in payable on futures contracts |
5,985ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
|
| Net cash provided by (used in) operating activities |
5,374,862us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(54,305,319)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
10,858,377us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
89,514,809us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Payment on shares redeemed |
(16,671,600)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(32,775,728)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net cash provided by (used in) financing activities |
(5,813,223)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
56,739,081us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net increase (decrease) in cash |
(438,361)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
2,433,762us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Cash, beginning of period |
696,743us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
564,647us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Cash, end of period |
258,382us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
2,998,409us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| ProShares UltraShort Gold [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
2,430,175us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(19,493,987)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
4,600,652ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
43,151,202ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Change in unrealized appreciation/depreciation on investments |
(699,461)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(2,902,238)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Decrease (Increase) in receivable on futures contracts |
2,868ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(1,800)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Increase (Decrease) in management fee payable |
(1,228)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(38,574)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net cash provided by (used in) operating activities |
6,333,006us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
20,714,603us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
8,523,330us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
27,505,358us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Payment on shares redeemed |
(14,854,653)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(48,205,557)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net cash provided by (used in) financing activities |
(6,331,323)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(20,700,199)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net increase (decrease) in cash |
1,683us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
14,404us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Cash, beginning of period |
162,434us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
197,647us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Cash, end of period |
164,117us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
212,051us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| ProShares UltraShort Silver [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(5,809,417)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(2,843,026)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(2,640)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
2,225,289ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
47,636,698ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Change in unrealized appreciation/depreciation on investments |
4,330,869ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(9,969,919)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Decrease (Increase) in receivable on futures contracts |
6,010ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
2,450ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Increase (Decrease) in management fee payable |
696ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(31,378)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Increase (Decrease) in payable on futures contracts |
|
|
440ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net cash provided by (used in) operating activities |
750,807us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
34,795,265us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
14,996,733us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
41,391,244us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Payment on shares redeemed |
(15,809,627)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(76,378,197)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net cash provided by (used in) financing activities |
(812,894)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(34,986,953)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net increase (decrease) in cash |
(62,087)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(191,688)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Cash, beginning of period |
207,506us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
461,167us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Cash, end of period |
145,419us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
269,479us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| ProShares Short Euro [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
1,743,368us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(1,988)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(268,620)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
27,225ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(5,925,419)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
1,674,609ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Change in unrealized appreciation/depreciation on investments |
(183)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
190ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Decrease (Increase) in receivable on futures contracts |
(78,075)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
9,100ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Increase (Decrease) in management fee payable |
4,123ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(1,282)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Increase (Decrease) in payable on futures contracts |
|
|
12,300ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net cash provided by (used in) operating activities |
(4,524,806)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
1,720,154us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
4,418,831us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
|
| Payment on shares redeemed |
|
|
(1,792,584)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net cash provided by (used in) financing activities |
4,418,831us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(1,792,584)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net increase (decrease) in cash |
(105,975)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(72,430)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Cash, beginning of period |
1,640,225us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
863,980us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Cash, end of period |
1,534,250us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
791,550us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| ProShares UltraShort Australian Dollar [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
2,600,653us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,277,282)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
638,092ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
207,570ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
3,335,295ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
4,970,625ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Change in unrealized appreciation/depreciation on investments |
(109)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
415ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Decrease (Increase) in receivable on futures contracts |
(119,754)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
|
| Increase (Decrease) in management fee payable |
(2,802)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,916)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Increase (Decrease) in payable on futures contracts |
|
|
2,933ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net cash provided by (used in) operating activities |
6,451,375us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
2,901,345us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
2,764,167us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
|
| Payment on shares redeemed |
(8,380,675)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(4,540,263)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net cash provided by (used in) financing activities |
(5,616,508)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(4,540,263)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net increase (decrease) in cash |
834,867us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(1,638,918)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Cash, beginning of period |
1,788,757us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
2,751,320us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Cash, end of period |
2,623,624us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
1,112,402us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| ProShares UltraShort Euro [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
112,970,253us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(3,067,792)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
(62,336,046)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
23,525,818ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Change in unrealized appreciation/depreciation on investments |
(6,631,469)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(10,013,710)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Increase (Decrease) in management fee payable |
51,813ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(17,998)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net cash provided by (used in) operating activities |
44,054,551us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
10,426,318us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
114,034,597us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
3,360,054us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Payment on shares redeemed |
(158,560,439)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(13,798,403)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net cash provided by (used in) financing activities |
(44,525,842)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(10,438,349)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net increase (decrease) in cash |
(471,291)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(12,031)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Cash, beginning of period |
746,454us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
218,940us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Cash, end of period |
275,163us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
206,909us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| ProShares UltraShort Yen [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(3,983,909)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(25,587,106)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
88,858,357ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
157,858,611ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Change in unrealized appreciation/depreciation on investments |
(2,237,926)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
24,542,413ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Increase (Decrease) in management fee payable |
(45,873)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(105,150)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net cash provided by (used in) operating activities |
82,590,649us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
156,708,768us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
58,116,062us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
9,974,148us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Payment on shares redeemed |
(140,793,326)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(166,857,972)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net cash provided by (used in) financing activities |
(82,677,264)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(156,883,824)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net increase (decrease) in cash |
(86,615)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(175,056)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Cash, beginning of period |
532,706us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
575,108us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Cash, end of period |
446,091us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
400,052us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| ProShares Ultra Bloomberg Commodity [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(324,012)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
401,270us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
512,138ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
405,883ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Change in unrealized appreciation/depreciation on investments |
(201,952)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
129,115ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Increase (Decrease) in management fee payable |
(415)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
309ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net cash provided by (used in) operating activities |
(14,241)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
936,577us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Cash flow from financing activities |
|
|
|
| Net increase (decrease) in cash |
(14,241)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
936,577us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Cash, beginning of period |
185,684us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
85,642us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Cash, end of period |
171,443us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
1,022,219us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| ProShares Ultra Bloomberg Crude Oil [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(195,164,283)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
21,342,810us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
21,184,809ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
896,115ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(598,912,305)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
25,373,056ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Change in unrealized appreciation/depreciation on investments |
2,291,994ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
1,006,506ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Decrease (Increase) in receivable on futures contracts |
|
|
(121,862)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Increase (Decrease) in management fee payable |
469,641ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(46,160)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Increase (Decrease) in payable on futures contracts |
8,223,488ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(997,210)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net cash provided by (used in) operating activities |
(761,906,656)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
47,453,255us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
1,033,639,301us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
127,214,584us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Payment on shares redeemed |
(269,057,623)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(173,675,237)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net cash provided by (used in) financing activities |
764,581,678us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(46,460,653)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net increase (decrease) in cash |
2,675,022us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
992,602us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Cash, beginning of period |
2,349,384us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
689,596us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Cash, end of period |
5,024,406us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
1,682,198us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| ProShares Ultra Bloomberg Natural Gas [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(18,588,424)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
18,491,246us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
17,291,600ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
3,397,900ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(3,760,303)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
40,640,631ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Change in unrealized appreciation/depreciation on investments |
689ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
2,402ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Increase (Decrease) in management fee payable |
(10,942)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(58,040)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Increase (Decrease) in payable on futures contracts |
(9,388,126)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(4,578,015)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net cash provided by (used in) operating activities |
(14,455,506)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
57,896,124us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
31,430,074us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
9,133,238us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Payment on shares redeemed |
(18,115,142)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(69,328,413)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net cash provided by (used in) financing activities |
13,314,932us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(60,195,175)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net increase (decrease) in cash |
(1,140,574)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(2,299,051)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Cash, beginning of period |
1,653,582us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
3,102,827us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Cash, end of period |
513,008us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
803,776us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| ProShares Ultra Gold [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(3,601,964)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
17,925,978us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
7,693,644ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(7,448,937)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Change in unrealized appreciation/depreciation on investments |
389,813ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
5,187,733ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Increase (Decrease) in management fee payable |
(8,971)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
8,545ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Increase (Decrease) in payable on futures contracts |
(2,840)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
1,900ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net cash provided by (used in) operating activities |
4,469,682us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
15,675,219us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
2,093,762us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
4,708,180us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Payment on shares redeemed |
(6,545,401)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(20,378,685)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net cash provided by (used in) financing activities |
(4,451,639)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(15,670,505)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net increase (decrease) in cash |
18,043us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
4,714us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Cash, beginning of period |
104,145us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
142,566us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Cash, end of period |
122,188us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
147,280us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| ProShares Ultra Silver [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
16,550,946us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
17,192,792us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(2,640)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
10,973,485ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(62,836,134)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Change in unrealized appreciation/depreciation on investments |
(35,016,895)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
55,649,409ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Increase (Decrease) in management fee payable |
(8,608)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
37,130ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Increase (Decrease) in payable on futures contracts |
(6,010)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(2,070)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net cash provided by (used in) operating activities |
(7,509,722)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
10,041,127us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
28,733,984us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
43,273,004us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Payment on shares redeemed |
(21,239,648)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(53,246,602)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net cash provided by (used in) financing activities |
7,494,336us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(9,973,598)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net increase (decrease) in cash |
(15,386)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
67,529us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Cash, beginning of period |
305,004us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
463,001us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Cash, end of period |
289,618us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
530,530us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| ProShares Ultra Australian Dollar [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(342,891)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
276,371us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
(32,329)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(23,760)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
203,753ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(59,530)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Change in unrealized appreciation/depreciation on investments |
12ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
77ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Decrease (Increase) in receivable on futures contracts |
|
|
(2,853)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Increase (Decrease) in management fee payable |
(252)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
69ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Increase (Decrease) in payable on futures contracts |
14,863ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
|
| Net cash provided by (used in) operating activities |
(156,844)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
190,374us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Cash flow from financing activities |
|
|
|
| Net increase (decrease) in cash |
(156,844)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
190,374us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Cash, beginning of period |
222,968us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
314,796us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Cash, end of period |
66,124us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
505,170us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| ProShares Ultra Euro [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(1,756,235)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(545)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
(12,827,127)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
148,087ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Change in unrealized appreciation/depreciation on investments |
675,335ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
80,017ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Increase (Decrease) in management fee payable |
7,761ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(604)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net cash provided by (used in) operating activities |
(13,900,266)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
226,955us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
13,540,570us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
|
| Net cash provided by (used in) financing activities |
13,540,570us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
|
| Net increase (decrease) in cash |
(359,696)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
226,955us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Cash, beginning of period |
671,117us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
49,723us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Cash, end of period |
311,421us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
276,678us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| ProShares Ultra Yen [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(115,843)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
101,117us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Net sale (purchase) of short-term U.S. government and agency obligations |
(3,922,516)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
456,603ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Change in unrealized appreciation/depreciation on investments |
26,127ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
(117,978)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Increase (Decrease) in management fee payable |
3,144ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
46ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net cash provided by (used in) operating activities |
(4,009,088)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
439,788us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
4,285,016us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
|
| Payment on shares redeemed |
(687,120)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
|
| Net cash provided by (used in) financing activities |
3,597,896us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
|
| Net increase (decrease) in cash |
(411,192)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
439,788us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Cash, beginning of period |
846,919us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
28,116us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Cash, end of period |
435,727us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
467,904us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| ProShares Trust II [Member] |
|
|
|
| Cash flow from operating activities |
|
|
|
| Net income (loss) |
(246,519,408)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
15,797,664us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |
|
|
|
| Decrease (Increase) in segregated cash balances with brokers for futures contracts |
113,321,830ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(5,808,535)ck0001415311_DecreaseIncreaseInSegregatedCashBalancesWithBrokersForFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net sale (purchase) of short-term U.S. government and agency obligations |
(974,362,948)ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
179,891,147ck0001415311_NetSalePurchaseOfShortTermUSGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Change in unrealized appreciation/depreciation on investments |
(36,614,355)ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
61,824,174ck0001415311_ChangeInNetUnrealizedAppreciationDepreciation
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Decrease (Increase) in receivable on futures contracts |
7,927,230ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(2,789,541)ck0001415311_DecreaseIncreaseInReceivableOnOpenFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Decrease (Increase) in Limitation by Sponsor |
(1,534)ck0001415311_DecreaseIncreaseInLimitationBySponsor
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
| Change in offering cost |
16,220ck0001415311_DecreaseIncreaseInOfferingCosts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
| Increase (Decrease) in management fee payable |
725,494ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(160,366)ck0001415311_IncreaseDecreaseInManagementFeePayable
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Increase (Decrease) in payable on futures contracts |
(30,746,878)ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
19,707,435ck0001415311_IncreaseDecreaseInPayableOnFuturesContracts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net cash provided by (used in) operating activities |
(1,166,254,349)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
268,461,978us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Cash flow from financing activities |
|
|
|
| Proceeds from addition of shares |
2,890,975,532us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
1,098,061,807us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Payment on shares redeemed |
(1,719,419,849)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(1,362,287,727)us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net cash provided by (used in) financing activities |
1,171,555,683us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(264,225,920)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net increase (decrease) in cash |
5,301,334us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
4,236,058us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Cash, beginning of period |
35,899,231us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
23,390,732us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Cash, end of period |
$ 41,200,565us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
$ 27,626,790us-gaap_Cash
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
|