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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income (loss) attributable to DXP Enterprises, Inc. | $ (29,269) | $ 37,025 | $ 38,345
Less: net loss attributable to non-controlling interest | (348) | (260) | (111)
Net income (loss) | (29,617) | 36,765 | 38,234
Reconciliation of net income (loss) to net cash provided by operating activities: |  |  |
Depreciation | 10,396 | 10,100 | 9,578
Impairment and other charges | 59,883 | 0 | 0
Amortization of intangible assets | 12,287 | 15,074 | 16,586
Bad debt expense | 1,194 | 139 | 2,368
Payment of contingent consideration liability in excess of acquisition-date fair value | (136) | (106) | 0
Amortization of debt issuance costs | 1,875 | 1,875 | 1,743
Fair value adjustment on contingent consideration | (395) | 54 | 313
Loss on extinguishment and modification of debt | 2,288 | 0 | 60
Gain on sale of property and equipment | 0 | (9) | (1,330)
Stock compensation expense | 3,532 | 1,963 | 2,549
Deferred income taxes | (14,732) | 840 | 1,004
Changes in operating assets and liabilities |  |  |
Trade accounts receivable | 44,884 | 7,898 | (24,999)
Costs and estimated profits in excess of billings | 14,009 | 92 | (5,640)
Inventories | 22,414 | (13,910) | (21,363)
Prepaid expenses and other assets | 13,782 | 5,110 | 187
Accounts payable and accrued expenses | (15,345) | (19,003) | 7,418
Billings in excess of costs & estimated profits | (7,816) | 1,142 | 6,522
Other long-term liabilities | (8,853) | (6,718) | 2,610
Net cash provided by operating activities | 109,650 | 41,306 | 35,840
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of property and equipment | (6,672) | (22,120) | (9,323)
Proceeds from the sale of property and equipment | 123 | 35 | 2,558
Acquisition of businesses, net of cash acquired | (115,247) | 0 | (10,811)
Net cash used in investing activities | (121,796) | (22,085) | (17,576)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from debt | 330,000 | 0 | 0
Principal debt payments | (244,375) | (4,341) | (3,381)
Debt issuance costs | (7,268) | 0 | (60)
Issuance of Common Stock- shares sold in public market | 1,142 | 0 | 0
Payment for contingent consideration liability | (1,864) | (1,394) | 0
Non-controlling interest holder contributions (distributions), net of tax benefits | 0 | 0 | 950
Preferred dividends paid | (90) | (90) | (90)
Payment for employee taxes withheld from stock awards | (139) | (267) | (340)
Net cash provided by (used in) financing activities | 77,406 | (6,092) | (2,921)
Effect of foreign currency on cash | (168) | 679 | (403)
Net Change In Cash | 65,092 | 13,808 | 14,940
Cash, cash equivalents and restricted cash at Beginning of Year | 54,327 | 40,519 | 25,579
Cash, cash equivalents and restricted cash at End of Year | 119,419 | 54,327 | 40,519
SUPPLEMENTAL CASH FLOW INFORMATION: |  |  |
Cash paid for interest | 13,321 | 17,623 | 19,134
Cash paid for income taxes | $ 6,277 | $ 13,318 | $ 8,301

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