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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Cash flows from operating activities: |  |
Net income (loss) | $ (318,705) | $ (512,307)
Adjustments to net income (loss): |  |
Depreciation and amortization | 352,052 | 438,182
Deferred income tax expense (benefit) | (3,649) | 29,682
Impairments and other charges | 58,710 | 310,296
Amortization of debt discount and deferred financing costs | 10,592 | 16,208
Losses (gains) on debt buyback | (8,185) | (51,678)
Losses (gains) on long-lived assets, net | 17,488 | 2,428
Losses (gains) on investments, net | (775) | 4,733
Provision (recovery) of bad debt | 240 | 10,164
Share-based compensation | 10,741 | 15,756
Foreign currency transaction losses (gains), net | 2,499 | 2,130
Noncontrolling interest | (14,390) | (27,632)
Other | 684 | 352
Changes in operating assets and liabilities, net of effects from acquisitions: |  |
Accounts receivable | 45,385 | 89,981
Inventory | 12,685 | (724)
Other current assets | (6,624) | 7,926
Other long-term assets | (3,643) | 10,273
Trade accounts payable and accrued liabilities | 28,324 | (127,830)
Income taxes payable | 8,697 | 8,823
Other long-term liabilities | 21,077 | (24,991)
Net cash provided by (used for) operating activities | 213,203 | 201,772
Cash flows from investing activities: |  |
Purchases of investments | (28) | (16)
Sales and maturities of investments | 11,369 | 1,861
Capital expenditures | (117,785) | (106,766)
Proceeds from sales of assets and insurance claims | 21,525 | 12,772
Net cash (used for) provided by investing activities | (84,919) | (92,149)
Cash flows from financing activities: |  |
Proceeds from issuance of long-term debt |  | 1,000,000
Reduction in long-term debt | (21,800) | (1,218,622)
Debt issuance costs | (2,421) | (16,023)
Proceeds from revolving credit facilities | 110,000 | 1,240,000
Reduction in revolving credit facilities | (225,000) | (1,035,000)
Repurchase of common and preferred shares |  | (13,858)
Dividends to common and preferred shareholders | (7,315) | (15,232)
Distributions to noncontrolling interest | (50,867) | (1,005)
Other | (1,990) | (1,576)
Net cash (used for) provided by financing activities | (199,393) | (61,316)
Effect of exchange rate changes on cash and cash equivalents | (1,349) | (3,336)
Net increase (decrease) in cash and cash equivalents and restricted cash | (72,458) | 44,971
Cash and cash equivalents and restricted cash, beginning of period | 475,280 | 442,038
Cash and cash equivalents and restricted cash, end of period | 402,822 | 487,009
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH |  |
Cash and cash equivalents, beginning of period | 472,246 | 435,990
Restricted cash, beginning of period | 3,034 | 6,048
Cash and cash equivalents and restricted cash, beginning of period | 475,280 | 442,038
Cash and cash equivalents, end of period | 399,881 | 484,336
Restricted cash, end of period | 2,941 | 2,673
Cash and cash equivalents and restricted cash, end of period | $ 402,822 | $ 487,009

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