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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019
Cash flows from operating activities: |  |  |
Net earnings, including non-controlling interest | $ 139,585 | $ 229,296 | $ 96,072
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |  |
Depreciation and amortization | 87,747 | 82,737 | 78,171
Costs recognized on sale of acquired inventory | 1,565 | 0 | 3,739
Deferred income taxes | (27,431) | 13,130 | (13,582)
Stock-based compensation expense | 48,982 | 32,367 | 32,280
Fair value adjustment to contingent consideration payable | 5,300 | (905) | (2,000)
Contingent consideration payments | (337) | (958) | 0
(Gain) Loss on investment, net | 0 | 0 | (3,702)
Fair value adjustment on available for sale investments | 67,879 | (137,527) | 16,067
Leases, net | 75 | 225 | 0
Gain on escrow settlement | 0 | (7,170) | 0
Other operating activity | (464) | (732) | 2,325
Change in operating assets and liabilities, net of acquisitions: |  |  |
Trade accounts and other receivables | (15,549) | 6,556 | (15,000)
Inventories | (7,140) | (14,861) | (13,647)
Prepaid expenses | (1,101) | (2,605) | (698)
Trade accounts payable and accrued expenses | 19,091 | 10,343 | 6,101
Salaries, wages and related accruals | 20,536 | 2,552 | 5,013
Income taxes payable | 13,426 | (7,231) | (9,520)
Net cash provided by operating activities | 352,164 | 205,217 | 181,619
Cash flows from investing activities: |  |  |
Proceeds from sale and maturities of available-for-sale investments | 66,377 | 147,120 | 21,579
Purchase of available-for-sale investments | (39,684) | (70,187) | (43,475)
Additions to property and equipment | (44,301) | (51,744) | (25,411)
Acquisitions, net of cash acquired | (225,352) | 0 | (289,492)
Investment in unconsolidated entity, net | (556) | 1,906 | 0
Other investing activities | 0 | 0 | 0
Net cash provided by (used in) investing activities | (243,516) | 27,095 | (336,799)
Cash flows from financing activities: |  |  |
Cash dividends | (49,622) | (48,902) | (48,364)
Proceeds from stock option exercises | 65,092 | 70,983 | 37,950
Re-purchases of common stock | (43,178) | (50,112) | (15,405)
Borrowings under line-of-credit agreement | 256,000 | 40,000 | 580,000
Payments on line-of-credit | (271,500) | (188,500) | (413,500)
Contingent consideration payments | 0 | (3,400) | 0
Other financing activities | (19,343) | (3,872) | (6,297)
Net cash provided by (used in) financing activities | (62,551) | (183,802) | 134,384
Effect of exchange rate changes on cash and cash equivalents | 6,369 | (2,771) | (308)
Net change in cash and cash equivalents | 52,466 | 45,739 | (21,104)
Cash and cash equivalents at beginning of year | 146,625 | 100,886 | 121,990
Cash and cash equivalents at end of year | $ 199,091 | $ 146,625 | $ 100,886

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