|Guggenheim BulletShrs2018 HY CorpBd ETF|
|The investment seeks investment results that correspond generally to the performance, before the fund's fees and expenses, of a high yield corporate bond index called the NASDAQ BulletShares® USD High Yield Corporate Bond 2018 Index.
The fund invests at least 80% of total assets in component securities that comprise the index. It will invest at least 80% of its net assets in high yield securities. The High Yield 2018 Index is designed to represent the performance of a held-to-maturity portfolio of U.S. dollar-denominated high yield corporate bonds with effective maturities in 2018. The fund is non-diversified.|
| ||BSJI||Category Avg|
|Annual Report Expense Ratio (net)||0.44%||0.45%|
|Annual Holdings Turnover||N/A||13.60|
|Total Net Assets||NaN||NaN|