Organization - Additional Information (Detail) (USD $)	6 Months Ended		0 Months Ended
	Jun. 30, 2014 Basket	Dec. 31, 2013	Aug. 03, 2006 PowerShares DB Energy Fund [Member] Trust
Organization [Line Items]
Number of series of trusts			7
Partners' capital contribution			$ 1,000
General shares, shares issued	40	40	40
Number of shares issued per Basket	200,000
Fund offered common units to authorized participants in number of basket	1