|ProShares 30 Year TIPS/TSY Spread|
|The investment seeks investment results, before fees and expenses, that track the performance of the Credit Suisse 30-Year Inflation Breakeven Index.
The fund seeks to remain fully exposed to the index and will invest at least 80% of its total assets in securities of the index. The index tracks the performance of long positions in the most recently issued 30-year Treasury Inflation-Protected Securities bond and duration-adjusted short positions in U.S. Treasury bonds of the closest maturity. The 30-Year BEI is considered to be a measure of the market's expectations for inflation over the next thirty years. The fund is non-diversified.|
| ||RINF||Category Avg|
|Annual Report Expense Ratio (net)||0.75%||N/A|
|Annual Holdings Turnover||NaN||N/A|
|Total Net Assets||NaN||N/A|