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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash flows from operating activities: |  |
Net income | $ 177.8 | $ 154.9
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation | 74.6 | 76.1
Amortization | 2.5 | 2.0
Stock-based compensation | 18.8 | 14.7
Non-cash restructuring charges | 1.6 | 0.8
Pension settlement charge | 2.7 | 0.0
Contingent consideration payments in excess of acquisition-date liability | (0.3) | (0.5)
Other non-cash items, net | (0.6) | (4.0)
Changes in assets and liabilities | (16.3) | (28.6)
Net cash provided by operating activities | 260.8 | 215.4
Cash flows from investing activities: |  |
Capital expenditures | (88.8) | (74.7)
Acquisition of business | (18.9) | 0.0
Other, net | 0.3 | 2.5
Net cash used in investing activities | (107.4) | (72.2)
Cash flows from financing activities: |  |
Borrowings under revolving credit agreements | 28.0 | 0.0
Repayments under revolving credit agreements | (28.0) | 0.0
Debt issuance costs | (0.9) | 0.0
Dividend payments | (33.3) | (31.0)
Proceeds from stock-based compensation awards | 25.5 | 25.7
Employee stock purchase plan contributions | 4.0 | 3.6
Shares purchased under share repurchase programs | (83.1) | (70.8)
Net cash used in financing activities | (87.8) | (72.5)
Effect of exchange rates on cash | (7.0) | (9.3)
Net increase in cash and cash equivalents | 58.6 | 61.4
Cash and cash equivalents at beginning of period | 337.4 | 235.9
Cash and cash equivalents at end of period | $ 396.0 | $ 297.3

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