CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract]
Cash paid in form of checks in connection with a business acquisition	$ 36.7

The cash outflow relating to the business acquisition in form of checks, for which the checks are still outstanding.

No definition available.

Name:	dxpe_CashIssuedInConnectionWithAcquisition
Namespace Prefix:	dxpe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant