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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES FROM CONTINUING OPERATIONS: |  |  |
Net income before non-controlling interests | $ 349.8 | $ 189.4 | $ 97.6
Loss from discontinued operations, net of tax | 0.0 | 1.4 | 17.8
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 98.0 | 89.7 | 87.1
Amortization of stock-based compensation | 104.5 | 26.8 | 24.8
Amortization of deferred financing costs | 3.2 | 2.4 | 2.3
Bad debt expense | 35.8 | 29.3 | 31.3
Charitable stock donation | 0.0 | 8.9 | 0.0
Deferred income taxes | (8.6) | (7.1) | 6.0
Dividends received from unconsolidated affiliates | 19.3 | 13.4 | 14.8
Equity income in earnings of unconsolidated affiliates | (16.4) | (15.9) | (17.6)
Loss on extinguishment of debt | 2.3 | 0.0 | 0.0
Loss on sale of assets | (1.7) | 1.0 | 3.3
Foreign currency adjustments and other | (0.5) | (5.2) | (2.1)
Changes in operating assets and liabilities, net of effect of business acquisitions: |  |  |
Accounts receivable | (55.7) | (76.0) | (46.3)
Inventories | (42.5) | (28.2) | (44.6)
Prepaid expenses and other assets | (19.4) | 11.3 | (14.4)
Operating leases, net | 21.9 | 8.6 | 0.0
Accounts payable | 63.0 | (4.8) | 28.7
Accrued expenses and other liabilities | 90.5 | 67.3 | 43.2
Income taxes, net | 11.2 | 2.5 | (24.4)
Net cash provided by operating activities from continuing operations | 654.7 | 314.8 | 207.5
CASH FLOWS FROM INVESTING ACTIVITIES FROM CONTINUING OPERATIONS: |  |  |
Purchases of property, plant and equipment | (111.3) | (88.2) | (73.6)
Acquisitions, net of cash acquired | (41.2) | (17.1) | 0.0
Other | 5.9 | 15.1 | 2.4
Net cash used in investing activities from continuing operations | (146.6) | (90.2) | (71.2)
CASH FLOWS FROM FINANCING ACTIVITIES FROM CONTINUING OPERATIONS: |  |  |
Proceeds from borrowings under long-term debt obligations | 1,175.8 | 1,242.8 | 1,094.9
Repayments of borrowings under long-term debt obligations | (1,360.3) | (1,347.1) | (1,195.8)
Proceeds from exercise of stock options | 6.9 | 17.8 | 4.6
Treasury stock repurchased | (331.8) | (105.7) | (4.6)
Payment of deferred financing costs | (1.3) | (3.2) | 0.0
Repayments of finance lease obligations and other | (11.9) | (7.8) | (6.1)
Net cash used in financing activities from continuing operations | (522.6) | (203.2) | (107.0)
Net cash (used in) provided by continuing operations | (14.5) | 21.4 | 29.3
CASH PROVIDED BY (USED IN) DISCONTINUED OPERATIONS |  |  |
Operating cash flows | 0.3 | (2.0) | (24.4)
Investing cash flows | 0.0 | 0.0 | 2.1
Net cash provided by (used in) discontinued operations | 0.3 | (2.0) | (22.3)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS | 14.3 | (0.3) | (3.1)
Increase in cash and cash equivalents | 0.1 | 19.1 | 3.9
CASH AND CASH EQUIVALENTS, beginning of period | 64.9 | 45.8 | 41.9
CASH AND CASH EQUIVALENTS, end of period | 65.0 | 64.9 | 45.8
Cash paid during the period for: |  |  |
Interest | 79.0 | 89.0 | 91.8
Income taxes, net of refunds | $ 93.8 | $ 73.8 | $ 32.5

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