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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Operating activities: |  |  |
Net income | $ 99,225 | $ 38,706 | $ 10,225
Adjustments required to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 13,838 | 9,897 | 9,923
Stock-based compensation expense | 11,570 | 6,985 | 4,447
Foreign currency translation | 20 | (223) | 19
Accrued interest, net | (3,646) | (300) | (125)
Deferred taxes, net | (1,428) | (2,755) | (3,093)
Accrued severance pay, net | (106) | 663 | (23)
Change in payment obligation related to acquisitions | (6,904) | 350 | 4,646
Loss (gain) from sale of property and equipment | (12) | 121 | 10
Net changes in operating assets and liabilities: |  |  |
Accounts receivable, net | (45,236) | (34,239) | (32,049)
Prepaid expenses and other current assets | (434) | (2,781) | (1,185)
Operating lease right-of-use assets | 1,104 | 8,510 | 2,595
Operating lease liabilities | (1,909) | (8,643) | (2,255)
Accounts payable | 48,191 | 35,222 | 24,742
Accrued expenses and other liabilities | 9,320 | 21,446 | 2,776
Deferred revenue | (1,474) | (1,853) | 1,506
Net cash provided by operating activities | 122,119 | 71,106 | 22,159
Investing activities: |  |  |
Purchases of property and equipment | (1,058) | (627) | (459)
Proceeds from sale of property and equipment | 12 | 95 | 5
Short-term deposits, inflows | 217,200 | 12,700 | 23,234
Short-term deposits, outflows | (253,400) | (217,200) | (12,700)
Cash paid in connection with acquisitions, net of cash acquired | (9,570) | (38,438) | (19,000)
Net cash used in investing activities | (46,816) | (243,470) | (8,920)
Financing activities: |  |  |
Issuance of shares in private placement, net | 0 | 230,489 | 0
Proceeds from exercise of stock-based compensation | 5,833 | 6,898 | 4,286
Payments of contingent consideration | (9,091) | 0 | 0
Repayment of long-term loans | 0 | (8,333) | (8,333)
Net cash provided by (used in) financing activities | (3,258) | 229,054 | (4,047)
Effect of exchange rate changes on cash and cash equivalents | (59) | (33) | 81
Net increase in cash and cash equivalents and restricted cash | 71,986 | 56,657 | 9,273
Cash and cash equivalents and restricted cash at beginning of year | 105,535 | 48,878 | 39,605
Cash and cash equivalents and restricted cash at end of year | 177,521 | 105,535 | 48,878
Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheet |  |  |
Cash and cash equivalents | 176,226 | 104,446 | 47,656
Restricted cash | 1,295 | 1,089 | 1,222
Total cash, cash equivalents, and restricted cash | 177,521 | 105,535 | 48,878
Cash paid during the year for: |  |  |
Income taxes | 7,689 | 4,365 | 3,180
Interest | 5 | 203 | 1,097
Non-cash investing and financing activities: |  |  |
Creation of new lease right-of-use assets arising from lease liability | 2,085 | 0 | 1,671
Purchase of property and equipment on credit | $ (47) | $ 45 | $ 3

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