First Trust Barclays Edge [Member] iShares MSCI EAFE ETF [Member] iShares U.S. Real Estate ETF [Member] Russell 2000 [Member] S And P 500 [Member] SPDR Gold Shares ETF [Member] One Year 10 Buffer 1 Cap [Member] One Year 10 Buffer 1 Dual Performance Trigger Rate [Member] One Year 10 Buffer 1 Trigger Rate [Member] One Year 10 Buffer 5 Upside Participation Rate [Member] One Year 10 Floor 1 Cap [Member] One Year 20 Buffer 1 Cap [Member] One Year 20 Buffer 1 Trigger Rate [Member] One Year 50 Downside Participation Rate 5 Upside Participation Rate [Member] Six Years 10 Buffer 5 Upside Participation Rate And 1 Cap [Member] Six Years 10 Buffer 5 Upside Participation Rate [Member] Six Years 20 Buffer 5 Upside Participation Rate And 1 Cap [Member] Six Years 20 Buffer 5 Upside Participation Rate [Member] Three Years 10 Buffer 5 Upside Participation Rate And 1 Cap [Member] Three Years 10 Buffer 5 Upside Participation Rate [Member] Three Years 20 Buffer 5 Upside Participation Rate And 1 Cap [Member] Three Years 20 Buffer 5 Upside Participation Rate [Member]