RELATED PARTIES (Details)	12 Months Ended
Dec. 31, 2015 USD ($) Employee
Related Party Transaction [Line Items]
Wages and other compensation	$ 500,000
Minimum [Member]
Related Party Transaction [Line Items]
Transaction amount	120,000
Chairman of the Board, President and Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Lease expenses	$ 1,700,000
Number of related party employees \| Employee	6
Payroll, related payroll expenses, vehicles, fuel and supplies	$ 400,000
Senior Vice President [Member]
Related Party Transaction [Line Items]
Lease expenses	1,100,000
Children of Chairman of the Board, President and Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Lease expenses	$ 200,000
Sons of Executives [Member]
Related Party Transaction [Line Items]
Number of related party employees \| Employee	2
Sons-in-laws of Executives [Member]
Related Party Transaction [Line Items]
Number of related party employees \| Employee	2
Sons and Sons in Law of Executives [Member]
Related Party Transaction [Line Items]
Number of related party employees \| Employee	4

Number of persons employed by the Entity

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- Definition

Amount of payroll and payroll related expenses, vehicles, fuel and supplies.

+ References

No definition available.

+ Details

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Namespace Prefix:	dxpe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of lease operating expense related to property used in oil and gas production.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 10
-Paragraph a
-Subparagraph 17
-Article 4

+ Details

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Expenditures for salaries for officers and non-officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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