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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |  |
Net income | $ 241,415 | $ 114,887 | $ 141,583
Adjustments to reconcile net income to net cash provided by operating activities |  |  |
Depreciation and amortization | 169,497 | 177,347 | 175,484
(Gain) loss on sale of property and equipment, net | (1,432) | (1,852) | 102
Stock-based compensation expense related to employee stock options and employee stock purchases | 22,246 | 19,356 | 19,005
Provision (benefit) for deferred income tax expense | 14,034 | (37,858) | 22,989
Change in accounts receivable, net | 32,312 | 11,223 | 19,831
Change in inventories | (33,572) | 536,682 | 81,722
Change in prepaid expenses and other, net | (252) | 5,822 | (10,237)
Change in trade accounts payable | 12,053 | (23,336) | 2,241
Payments on floor plan notes payable – trade, net |  | (114,958) | (26,579)
Change in customer deposits | 2,993 | 31,514 | 6,512
Change in accrued expenses | (31,337) | 48,974 | (12,757)
Other, net | (5,611) | (4,819) | 1,376
Net cash provided by operating activities | 422,346 | 762,982 | 421,272
Cash flows from investing activities: |  |  |
Acquisition of property and equipment | (167,177) | (136,200) | (293,493)
Proceeds from the sale of property and equipment | 3,447 | 5,783 | 2,310
Business acquisitions | (269,332) |  | (10,168)
Purchase of equity method investment and call option |  |  | (22,499)
Other | 157 | 2,960 | 3,394
Net cash used in investing activities | (432,905) | (127,457) | (320,456)
Cash flows from financing activities: |  |  |
Draws (payments) on floor plan notes payable – non-trade, net | 118,945 | (369,592) | (104)
Proceeds from long-term debt | 260,336 | 157,255 | 210,043
Principal payments on long-term debt | (455,064) | (255,279) | (183,538)
Principal payments on finance lease obligations | (13,774) | (11,192) | (8,331)
Draws on line of credit |  |  | 135,000
Payments on line of credit |  |  | (135,000)
Proceeds from issuance of shares relating to employee stock options and employee stock purchases | 10,870 | 21,037 | 8,244
Payments of cash dividends | (41,060) | (22,461) | (18,317)
Common stock repurchased | (33,596) | (24,865) | (58,188)
Debt issuance costs |  |  | (731)
Net cash used in financing activities | (153,343) | (505,097) | (50,922)
Net (decrease) increase in cash and cash equivalents | (163,902) | 130,428 | 49,894
Cash and cash equivalents, beginning of year | 312,048 | 181,620 | 131,726
Cash and cash equivalents, end of year | 148,146 | 312,048 | 181,620
Supplemental disclosure of cash flow information: |  |  |
Interest | 22,224 | 38,806 | 57,373
Income taxes paid, net | 101,987 | 36,364 | 42,440
Assets acquired under finance leases | $ 29,044 | $ 49,523 | 44,904
Guaranty agreement |  |  | $ 5,025

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