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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
OPERATING CASH FLOW |  |  |
Net earnings (loss) | $ (366,791) | $ (1,553,122) | $ 232,853
Adjustments to reconcile net earnings (loss) to operating cash flow: |  |  |
(Gain) loss on pension settlement | (406) | 137,898 | 21,900
Write-off of cumulative translation loss | 0 | 83,665 | 0
Depreciation | 102,451 | 154,599 | 197,585
Amortization of intangibles | 3,123 | 15,882 | 19,071
(Earnings) loss from equity method investments, net of distributions | (3,881) | 9,348 | 980
(Gain) loss on sales of assets | (510) | 7,284 | (147,074)
Impairment of Long-Lived Assets Held-for-use | 297,604 | 383,017 | 0
Amortization of stock-based awards | 21,882 | 36,075 | 43,029
(Gain) loss on deferred compensation trust | (32,792) | (55,820) | 18,010
(Gain) loss on deferred compensation obligation | 34,039 | 54,490 | (22,272)
Deferred taxes | (20,285) | 320,633 | 60,709
Net retirement plan accrual (contributions) | (20,770) | (2,325) | (38,372)
Changes in assets and liabilities | 29,801 | 633,027 | (227,732)
Other | (3,281) | (5,633) | 3,477
Operating cash flow | 185,884 | 219,018 | 162,164
INVESTING CASH FLOW |  |  |
Purchases of marketable securities | (35,078) | (31,165) | (483,513)
Proceeds from sales and maturities of marketable securities | 19,648 | 238,539 | 541,104
Capital expenditures | (113,442) | (180,842) | (210,998)
Proceeds from sales of property, plant and equipment | 62,692 | 65,977 | 81,038
Proceeds from sales of other assets | 48,897 | 0 | 124,942
Investments in partnerships and joint ventures | (29,219) | (52,305) | (73,145)
Return of capital from partnerships and joint ventures | 529 | 24,065 | 22,284
Proceeds from company owned life insurance | 4,574 | 16,414 | 1,040
Other | (163) | (211) | (1,369)
Investing cash flow | (41,562) | 80,472 | 1,383
FINANCING CASH FLOW |  |  |
Repurchase of common stock | 0 | 0 | (50,022)
Dividends paid | (28,720) | (118,073) | (118,734)
Proceeds from issuance of 2028 Notes | 0 | 0 | 598,722
Repayment of 2021 Notes | 0 | 0 | (503,285)
Debt issuance costs | 0 | 0 | (5,061)
Distributions paid to NCI | (23,184) | (33,674) | (63,523)
Capital contributions by NCI | 110,051 | 64,646 | 5,128
Taxes paid on vested restricted stock | (1,313) | (3,572) | (5,686)
Stock options exercised | 0 | 1,466 | 7,258
Other | (12,269) | 2,815 | (8,523)
Financing cash flow | 48,446 | (77,299) | (140,491)
Effect of exchange rate changes on cash | 8,814 | 10,262 | (62,385)
Increase (decrease) in cash and cash equivalents | 201,582 | 232,453 | (39,329)
Cash and cash equivalents at beginning of year | 1,997,199 | 1,764,746 | 1,804,075
Cash and cash equivalents at end of year | 2,198,781 | 1,997,199 | 1,764,746
Impairment expense - Disc Ops | 145,700 | 0 | 0
Proceeds from (Repayments of) Other Debt | $ 3,881 | $ 9,093 | $ 3,235

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