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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash flows from operating activities: |  |  |
Net income | $ 295,775 | $ 296,529 | $ 257,290
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 24,512 | 22,095 | 22,033
Share-based compensation | 17,032 | 15,508 | 13,293
Non-cash contribution to 401(k) plan | 4,274 | 2,945 | 2,428
Provision for doubtful accounts | 3,948 | 2,619 | 1,991
Deferred income tax provision (benefit) | 1,278 | 8,290 | (10,735)
(Gain) loss on sale of property and equipment | (585) | 27 | 115
Other income from investment in unconsolidated entity | (10,256) | (9,282) | (3,886)
Changes in operating assets and liabilities, net of effects of acquisitions: |  |  |
Accounts receivable | 8,457 | (28,831) | (1,676)
Inventories | (15,525) | (78,954) | (73,403)
Accounts payable and other liabilities | 12,734 | (57,398) | 99,956
Other, net | (5,873) | (2,991) | (886)
Net cash provided by operating activities | 335,771 | 170,557 | 306,520
Cash flows from investing activities: |  |  |
Business acquisitions, net of cash acquired | (59,672) | (5,626) |
Capital expenditures | (17,805) | (17,153) | (17,876)
Investment in unconsolidated entity | (4,940) | (3,760) | (63,600)
Proceeds from sale of property and equipment | 1,380 | 228 | 168
Net cash used in investing activities | (81,037) | (26,311) | (81,308)
Cash flows from financing activities: |  |  |
Dividends on Common and Class B common stock | (241,412) | (209,218) | (164,147)
Distributions to non-controlling interest | (39,272) | (46,825) | (42,831)
Purchase of additional ownership from non-controlling interest | (32,400) |  | (42,688)
Repurchases of common stock to satisfy employee withholding tax obligations | (1,528) | (3,782) | (4,674)
Net (repayments) proceeds of other long-term obligations | (1,240) | 269 | (19)
Payment of fees related to revolving credit agreement |  | (790) |
Net proceeds from the sale of Common stock |  |  | 247,744
Proceeds from non-controlling interest for investment in unconsolidated entity | 988 | 752 | 12,720
Net proceeds from issuances of common stock | 13,341 | 6,591 | 5,244
Proceeds from non-controlling interest for investment in Peirce-Phelps, Inc. | 17,000 |  |
Net cash used in financing activities | (264,023) | (139,603) | (202,145)
Effect of foreign exchange rate changes on cash and cash equivalents | 849 | (2,245) | 1,419
Net (decrease) increase in cash and cash equivalents | (8,440) | 2,398 | 24,486
Cash and cash equivalents at beginning of year | 82,894 | 80,496 | 56,010
Cash and cash equivalents at end of year | 74,454 | 82,894 | 80,496
Prior Revolving Credit Agreement [Member] |  |  |
Cash flows from financing activities: |  |  |
Net repayments under revolving credit agreement |  | (21,800) | $ (213,494)
Revolving Credit Agreement [Member] |  |  |
Cash flows from financing activities: |  |  |
Net repayments under revolving credit agreement | $ 20,500 | $ 135,200 |

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