- ReferencesReference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Form N-1A
 -Section 3
 -Subsection instruction
 -Paragraph 3
 -Subparagraph f
 -Sentence i
| Name: | oef_AcquiredFundFeesAndExpensesOverAssets | 
| Namespace Prefix: | oef_ | 
| Data Type: | oef:nonNegativePure4ItemType | 
| Balance Type: | na | 
| Period Type: | duration |