Average Annual Total Returns - Class H - Dow 2x Strategy Fund - Class H	Aug. 01, 2021
Average Annual Return:
1 Year	1.93%
5 Years	21.60%
10 Years	19.65%

Return Before Taxes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection b
-Paragraph 2
-Subparagraph iii
-Clause 1
-Exhibit 2

Name:	rr_AverageAnnualReturnYear01
Namespace Prefix:	rr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration