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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Cash flows from operating activities: |  |
Net income (loss) | $ 22,225 | $ (73,236)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 135,185 | 145,950
Long-lived and other asset impairment | 15,154 | 72,132
Goodwill impairment |  | 99,830
Inventory write-downs | 621 | 915
Amortization of operating lease ROU assets | 2,922 | 2,555
Amortization of deferred financing costs | 8,839 | 4,179
Amortization of debt discount |  | 187
Amortization of debt premium | (1,504) |
Amortization of dedesignated interest rate swaps | 431 |
Debt extinguishment loss |  | 3,971
Interest rate swaps | 2,866 | 2,094
Stock-based compensation expense | 8,741 | 8,423
Non-cash restructuring charges |  | 1,660
Provision for credit losses | 151 | 2,235
(Gain) loss on sale of assets, net | (10,604) | 1,402
Gain on sale of business | (18,945) | (12,475)
Deferred income tax provision (benefit) | 11,778 | (18,288)
Amortization of contract costs | 15,523 | 20,286
Deferred revenue recognized in earnings | (8,081) | (17,183)
Change in assets and liabilities, net of acquisition: |  |
Accounts receivable, trade | (2,133) | 31,134
Inventory | (5,994) | 3,244
Other assets | 1,326 | (23,539)
Contract costs, net | (11,481) | (10,390)
Accounts payable and other liabilities | 33,626 | 10,679
Deferred revenue | 8,167 | 10,696
Other | (88) | 373
Net cash provided by operating activities | 208,725 | 266,834
Cash flows from investing activities: |  |
Capital expenditures | (70,881) | (130,343)
Proceeds from sale of business | 83,075 | 32,914
Proceeds from sale of property, plant and equipment and other assets | 24,683 | 14,043
Proceeds from insurance and other settlements | 977 | 1,391
Net cash provided by (used in) investing activities | 37,854 | (81,995)
Cash flows from financing activities: |  |
Borrowings of long-term debt | 522,751 | 871,500
Repayments of long-term debt | (695,751) | (988,500)
Payments for debt issuance costs | (2,451) | (943)
Payments for settlement of interest rate swaps that include financing elements | (3,283) | (1,856)
Dividends paid to stockholders | (66,992) | (66,655)
Net proceeds from issuance of common stock | 3,401 |
Proceeds from stock issued under ESPP | 546 | 522
Purchases of treasury stock | (2,409) | (1,794)
Contribution from Exterran Corporation |  | 678
Net cash used in financing activities | (244,188) | (187,048)
Net increase (decrease) in cash and cash equivalents | 2,391 | (2,209)
Cash and cash equivalents, beginning of period | 1,097 | 3,685
Cash and cash equivalents, end of period | $ 3,488 | 1,476
Supplemental disclosure of non-cash investing and financing transactions: |  |
Non-cash consideration received in July 2020 Disposition |  | $ 6,500

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