First Trust North American Energy Infrastructure Fund
Legal Entity [Axis]
First Trust North American Energy Infrastructure Fund
Share Class [Axis]
Risk/Return:
Risk/Return [Heading]
Objective [Heading]
Objective, Primary [Text Block]
Objective, Secondary [Text Block]
Expense [Heading]
Expense Narrative [Text Block]
Shareholder Fees Caption [Text]
Shareholder Fees [Table]
Operating Expenses Caption [Text]
Annual Fund Operating Expenses [Table]
Expense Footnotes [Text Block]
Expenses Deferred Charges [Text Block]
Expenses Range of Exchange Fees [Text Block]
Expense Example [Heading]
Expense Example by Year [Heading]
Expense Example Narrative [Text Block]
Expense Example by, Year, Caption [Text]
Expense Example, With Redemption [Table]
Expense Example, No Redemption Narrative [Text Block]
Expense Example, No Redemption, By Year, Caption [Text]
Expense Example, No Redemption [Table]
Expense Example Footnotes [Text Block]
Expense Example Closing [Text Block]
Portfolio Turnover [Heading]
Portfolio Turnover [Text Block]
Strategy [Heading]
Strategy Narrative [Text Block]
Risk [Heading]
Risk Narrative [Text Block]
Risk Footnotes [Text Block]
Risk Closing [Text Block]
Bar Chart and Performance Table [Heading]
Performance Narrative [Text Block]
Bar Chart Narrative [Text Block]
Bar Chart [Heading]
Bar Chart [Table]
Bar Chart Footnotes [Text Block]
Bar Chart Closing [Text Block]
Performance Table Heading
Performance Table Narrative
Performance [Table]
Market Index Performance [Table]
Performance Table Footnotes
Performance Table Closing [Text Block]
Shareholder Fees:
Shareholder Fees Column [Text]
Maximum Cumulative Sales Charge (as a percentage of Offering Price)
Maximum Cumulative Sales Charge (as a percentage)
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)
Maximum Deferred Sales Charge (as a percentage of Offering Price)
Maximum Deferred Sales Charge (as a percentage)
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)
Redemption Fee (as a percentage of Amount Redeemed)
Redemption Fee
Exchange Fee (as a percentage of Amount Redeemed)
Exchange Fee
Maximum Account Fee (as a percentage of Assets)
Maximum Account Fee
Shareholder Fee, Other
Operating Expenses:
Operating Expenses Column [Text]
Management Fees
Distribution and Service (12b-1) Fees
Distribution or Similar (Non 12b-1) Fees
Component1 Other Expenses
Component2 Other Expenses
Component3 Other Expenses
Other Expenses
Acquired Fund Fees and Expenses
Total Annual Fund Operating Expenses
Fee Waiver or Reimbursement
Net Expenses (as a percentage of Assets)
Expense Example:
Expense Example, By Year, Column [Text]
Expense Example, with Redemption, 1 Year
Expense Example, with Redemption, 3 Years
Expense Example, with Redemption, 5 Years
Expense Example, with Redemption, 10 Years
Expense Example, No Redemption:
Expense Example, No Redemption, By Year, Column [Text]
1 Year
3 Years
Expense Example, No Redemption, 5 Years
Expense Example, No Redemption, 10 Years
Bar Chart Table:
Annual Return Caption [Text]
Annual Return, Column [Text]
Annual Return, Inception Date
Annual Return 1990
Annual Return 1991
Annual Return 1992
Annual Return 1993
Annual Return 1994
Annual Return 1995
Annual Return 1996
Annual Return 1997
Annual Return 1998
Annual Return 1999
Annual Return 2000
Annual Return 2001
Annual Return 2002
Annual Return 2003
Annual Return 2004
Annual Return 2005
Annual Return 2006
Annual Return 2007
Annual Return 2008
Annual Return 2009
Annual Return 2010
Annual Return 2011
Annual Return 2012
Annual Return 2013
Annual Return 2014
Average Annual Return:
Label
1 Year
5 Years
10 Years
Since Inception
Inception Date
Risk/Return Detail [Table]
Document Type
Document Period End Date
Registrant Name
Central Index Key
Amendment Flag
Amendment Description
Trading Symbol
Document Creation Date
Document Effective Date
Prospectus Date
Fee Waiver or Reimbursement over Assets, Date of Termination
Portfolio Turnover, Rate
Expense Breakpoint Discounts [Text]
Expense Breakpoint, Minimum Investment Required [Amount]
Expense Exchange Traded Fund Commissions [Text]
Expenses Represent Both Master and Feeder [Text]
Expenses Explanation of Nonrecurring Account Fee [Text]
Other Expenses, New Fund, Based on Estimates [Text]
Acquired Fund Fees and Expenses, Based on Estimates [Text]
Expenses Other Expenses Had Extraordinary Expenses Been Included [Text]
Expenses Restated to Reflect Current [Text]
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]
Strategy Portfolio Concentration [Text]
Risk Lose Money [Text]
Risk Nondiversified Status [Text]
Risk Money Market Fund [Text]
Risk Not Insured Depository Institution [Text]
Risk Caption
Risk Column [Text]
Risk [Text]
Performance Information Illustrates Variability of Returns [Text]
Performance One Year or Less [Text]
Performance Additional Market Index [Text]
Performance Availability Phone [Text]
Performance Availability Website Address [Text]
Performance Past Does Not Indicate Future [Text]
Bar Chart Does Not Reflect Sales Loads [Text]
Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text]
Bar Chart, Returns for Class Not Offered in Prospectus [Text]
Year to Date Return, Label
Bar Chart, Year to Date Return, Date
Bar Chart, Year to Date Return
Highest Quarterly Return, Label
Highest Quarterly Return, Date
Highest Quarterly Return
Lowest Quarterly Return, Label
Lowest Quarterly Return, Date
Lowest Quarterly Return
Performance Table Does Reflect Sales Loads
Performance Table Market Index Changed
Index No Deduction for Fees, Expenses, Taxes [Text]
Performance Table Uses Highest Federal Rate
Performance Table Not Relevant to Tax Deferred
Performance Table One Class of after Tax Shown [Text]
Performance Table Explanation after Tax Higher
Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text]
Caption
Column
Money Market Seven Day Yield, Caption [Text]
Money Market Seven Day Yield Column [Text]
Money Market Seven Day Yield Phone
Money Market Seven Day Yield
Money Market Seven Day Tax Equivalent Yield
Thirty Day Yield Caption
Thirty Day Yield Column [Text]
Thirty Day Yield Phone
Thirty Day Yield
Thirty Day Tax Equivalent Yield
C000102880Member
Expense Example, No Redemption, 1 Year