|Market Vectors Rare EarthStrat Mtls ETF|
|The investment seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the Market Vectors® Global Rare Earth/Strategic Metals Index.
The fund normally invests at least 80% of its total assets in securities that comprise the fund's benchmark index. The Rare Earth/Strategic Metals Index is comprised of companies primarily engaged in a variety of activities that are related to the producing, refining and recycling of rare earth and strategic metals and minerals. It is non-diversified.|
| ||REMX||Category Avg|
|Annual Report Expense Ratio (net)||0.57%||N/A|
|Annual Holdings Turnover||37.00%||N/A|
|Total Net Assets||NaN||N/A|