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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
CASH FLOW FROM OPERATING ACTIVITIES: |  |
Net income | $ 9,651 us-gaap_NetIncomeLoss | $ 10,963 us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |
Depreciation | 2,901 us-gaap_Depreciation | 2,984 us-gaap_Depreciation
Amortization of intangible assets | 5,358 us-gaap_AmortizationOfIntangibleAssets | 5,577 us-gaap_AmortizationOfIntangibleAssets
Bad debt expense | 516 us-gaap_ProvisionForDoubtfulAccounts | 524 us-gaap_ProvisionForDoubtfulAccounts
Amortization of debt issuance costs | 289 us-gaap_OtherNoncashExpense | 289 us-gaap_OtherNoncashExpense
Compensation expense for restricted stock | 812 us-gaap_RestrictedStockExpense | 685 us-gaap_RestrictedStockExpense
Tax loss (benefit) related to vesting of restricted stock | 46 us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities | (637)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Deferred income taxes | 1,262 us-gaap_DeferredIncomeTaxExpenseBenefit | (3,157)us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in operating assets and liabilities, net of assets and liabilities acquired in business acquisitions: |  |
Trade accounts receivable | 23,588 us-gaap_IncreaseDecreaseInAccountsReceivable | (18,010)us-gaap_IncreaseDecreaseInAccountsReceivable
Costs and estimated profits in excess of billings on uncompleted contracts | (3,340)dxpe_CostsAndEstimatedProfitsInExcessOfBillingsOnUncompletedContracts | 6,510 dxpe_CostsAndEstimatedProfitsInExcessOfBillingsOnUncompletedContracts
Inventories | 3,018 us-gaap_IncreaseDecreaseInInventories | 1,041 us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets | (2,181)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 636 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accounts payable and accrued expenses | (18,389)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | 10,450 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Billings in excess of costs and estimated profits on uncompleted contracts | (1,550)us-gaap_IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract | 2,795 us-gaap_IncreaseDecreaseInCostInExcessOfBillingOnUncompletedContract
Net cash provided by operating activities | 21,981 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 20,650 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchase of property and equipment | (3,574)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (1,684)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Sale of long-term investment | 0 us-gaap_ProceedsFromSaleOfLongtermInvestments | (1,688)us-gaap_ProceedsFromSaleOfLongtermInvestments
Acquisitions of businesses, net of cash acquired | 0 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (287,043)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Net cash used in investing activities | (3,574)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (290,415)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from debt | 123,351 us-gaap_ProceedsFromIssuanceOfDebt | 380,439 us-gaap_ProceedsFromIssuanceOfDebt
Principal payments on revolving line of credit and other long-term debt | (130,016)dxpe_PaymentsOnLongTermDebt | (104,454)dxpe_PaymentsOnLongTermDebt
Dividends paid | (23)us-gaap_PaymentsOfDividends | (23)us-gaap_PaymentsOfDividends
Purchase of treasury stock | (8,908)us-gaap_PaymentsForRepurchaseOfEquity | 0 us-gaap_PaymentsForRepurchaseOfEquity
Tax benefit related to vesting of restricted stock | (46)us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities | 637 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
Net cash provided by (used in) financing activities | (15,642)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | 276,599 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
EFFECT OF FOREIGN CURRENCY ON CASH | (403)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | (172)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
NET CHANGE IN CASH AND CASH EQUIVALENTS | 2,362 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 6,662 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 47 us-gaap_CashAndCashEquivalentsAtCarryingValue | 5,469 us-gaap_CashAndCashEquivalentsAtCarryingValue
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 2,409 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 12,131 us-gaap_CashAndCashEquivalentsAtCarryingValue

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, beyond the current operating cycle. + References No definition available. + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 + Details
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- Definition The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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