|PowerShares WilderHill Clean Energy ETF|
|The investment seeks investment results that generally correspond (before fees and expenses) to the price and yield of the WilderHill Clean Energy Index.
The fund generally will invest at least 90% of its total assets in common stocks of companies that comprise the underlying index. As of June 30, 2014, the underlying index was composed of the stocks of 57 companies that are publicly traded in the United States and that are engaged in the business of the advancement of cleaner energy and conservation.|
| ||PBW||Category Avg|
|Annual Report Expense Ratio (net)||0.70%||N/A|
|Annual Holdings Turnover||NaN||N/A|
|Total Net Assets||NaN||N/A|