Shareholder Fees (dei_DocumentInformationDocumentAxis)	0 Months Ended
	Feb. 28, 2013
(Oppenheimer Global Allocation Fund) | Class A
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	5.75%
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none
(Oppenheimer Global Allocation Fund) | Class B
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	5.00%
(Oppenheimer Global Allocation Fund) | Class C
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	1.00%
(Oppenheimer Global Allocation Fund) | Class I
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none
(Oppenheimer Global Allocation Fund) | Class N
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	1.00%
(Oppenheimer Global Allocation Fund) | Class Y
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none
(Oppenheimer Small- & Mid- Cap Value Fund) | Class A
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	5.75%
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none
(Oppenheimer Small- & Mid- Cap Value Fund) | Class B
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	5.00%
(Oppenheimer Small- & Mid- Cap Value Fund) | Class C
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	1.00%
(Oppenheimer Small- & Mid- Cap Value Fund) | Class I
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none
(Oppenheimer Small- & Mid- Cap Value Fund) | Class N
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	1.00%
(Oppenheimer Small- & Mid- Cap Value Fund) | Class Y
Shareholder Fees:
Maximum Sales Charge (Load) imposed on purchases (as % of offering price)	none
Maximum Deferred Sales Charge (Load) (as % of the lower of original offering price or redemption proceeds)	none