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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Issuance of shares in connection with acquisitions (in shares) | 36,000 us-gaap_StockIssuedDuringPeriodSharesAcquisitions | 52,542 us-gaap_StockIssuedDuringPeriodSharesAcquisitions | 19,685 us-gaap_StockIssuedDuringPeriodSharesAcquisitions
Vesting of restricted stock for common stock (in shares) | 69,675 dxpe_StockIssuedDuringPeriodSharesStockOptionsExercisedRestrictedStockVested | 67,021 dxpe_StockIssuedDuringPeriodSharesStockOptionsExercisedRestrictedStockVested | 75,419 dxpe_StockIssuedDuringPeriodSharesStockOptionsExercisedRestrictedStockVested
Acquisition of treasury stock (in shares) | 200,000 us-gaap_TreasuryStockSharesAcquired | 5,400 us-gaap_TreasuryStockSharesAcquired | 76,300 us-gaap_TreasuryStockSharesAcquired
Issuance of treasury shares for vesting of restricted stock (in shares) | 66,676 us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued |  |

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- Definition Number of shares of stock issued during the period pursuant to acquisitions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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