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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) | $ (762,846) | $ (680,510) | $ (612,726)
Adjustments to net income (loss): |  |  |
Depreciation and amortization | 853,697 | 876,103 | 868,509
Deferred income tax expense (benefit) | 64,717 | 35,894 | 71,579
Impairments and other charges | 318,582 | 213,404 | 62,578
Amortization of debt discount and deferred financing costs | 31,238 | 30,931 | 32,213
Losses (gains) on debt buyback | (228,274) | (11,468) | 5,268
Losses (gains) on long-lived assets, net | 64,365 | 40,346 | 95,741
Losses (gains) on investments, net | 4,286 | (1,257) | 14,195
Provision (recovery) of bad debt | 18,194 | 20,626 | 1,285
Share-based compensation | 24,638 | 24,660 | 26,396
Foreign currency transaction losses (gains), net | 13,133 | 20,876 | 4,235
Noncontrolling interest | (42,795) | (22,375) | (28,222)
Equity in (earnings) losses from unconsolidated affiliates, net of dividends |  | 5 | 164
Other | (770) | 667 | 720
Changes in operating assets and liabilities, net of effects from acquisitions: |  |  |
Accounts receivable | 67,502 | 276,685 | (66,486)
Inventory | 6,188 | (18,695) | (13,981)
Other current assets | 38,672 | 5,157 | 31,770
Other long-term assets | 20,830 | 13,106 | 11,717
Trade accounts payable and accrued liabilities | (142,826) | (142,857) | (76,561)
Income taxes payable | (933) | (4,857) | (41,939)
Other long-term liabilities | 2,163 | 8,117 | (60,682)
Net cash provided by (used for) operating activities | 349,761 | 684,558 | 325,773
Cash flows from investing activities: |  |  |
Purchases of investments | (91) | (4,323) | (676)
Sales and maturities of investments | 2,760 | 18,849 | 4,287
Cash paid for acquisition of businesses, net of cash acquired |  | (2,929) | (20,859)
Capital expenditures | (195,523) | (427,741) | (458,938)
Proceeds from sales of assets and insurance claims | 27,397 | 60,288 | 109,098
Net cash (used for) provided by investing activities | (165,457) | (355,856) | (367,088)
Cash flows from financing activities: |  |  |
Proceeds from issuance of long-term debt | 1,000,000 |  | 800,000
Reduction in long-term debt | (1,394,043) | (455,360) | (878,278)
Debt issuance costs | (28,112) | (1,767) | (21,277)
Proceeds from revolving credit facilities | 1,552,500 | 1,050,000 | 1,135,000
Reduction in revolving credit facilities | (1,235,000) | (865,000) | (1,475,000)
Proceeds from (payment for) commercial paper |  |  | (40,000)
Proceeds from (payments for) short-term borrowings |  | (561) | 380
Proceeds from issuance of common shares, net of issuance costs |  |  | 301,404
Proceeds from issuance of preferred stock, net of issuance costs |  |  | 277,927
Repurchase of common and preferred shares | (1,731) |  |
Dividends to common and preferred shareholders | (22,538) | (49,583) | (87,098)
Redeemable noncontrolling interest contribution |  |  | 156,935
Distributions to noncontrolling interest | (5,083) | (4,552) | (5,452)
Other | (13,994) | (4,750) | (8,912)
Net cash (used for) provided by financing activities | (148,001) | (331,573) | 155,629
Effect of exchange rate changes on cash and cash equivalents | (3,061) | (6,171) | (5,263)
Net increase (decrease) in cash and cash equivalents and restricted cash | 33,242 | (9,042) | 109,051
Cash and cash equivalents and restricted cash, beginning of period | 442,038 | 451,080 | 342,029
Cash and cash equivalents and restricted cash, end of period | 475,280 | 442,038 | 451,080
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH |  |  |
Cash and cash equivalents, beginning of period | 435,990 | 447,766 | 336,997
Restricted cash, beginning of period | 6,048 | 3,314 | 5,032
Cash and cash equivalents and restricted cash, beginning of period | 442,038 | 451,080 | 342,029
Cash and cash equivalents, end of period | 472,246 | 435,990 | 447,766
Restricted cash, end of period | 3,034 | 6,048 | 3,314
Cash and cash equivalents and restricted cash, end of period | $ 475,280 | $ 442,038 | $ 451,080

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