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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net income | $ 56,853 | $ 39,839
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation | 6,616 | 6,496
Amortization of intangibles | 4,548 | 2,891
Amortization of premium and discount on investments, net | (2,236) | (3,597)
Stock-based compensation to employees | 9,174 | 4,415
Deferred income tax benefit | (3,936) | (5,936)
Retirement plan expense, net of benefit payments | 330 | 782
Decrease (increase) in assets: |  |
Accounts receivable | 20,266 | (13)
Inventory | 2,890 | 8,975
Other current assets | (2,113) | 8,598
Other assets | 2,907 | 5,515
Increase (decrease) in liabilities: |  |
Accounts payable and accrued expenses | (7,977) | (24,116)
Other current liabilities | 12,786 | 12,874
Deferred revenue | (27,270) | (8,616)
Other liabilities | (682) | (486)
Net cash provided by operating activities | 72,156 | 47,621
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchases of property and equipment | (7,206) | (9,098)
Purchases of intangibles | 0 | (51)
Purchases of investments | (99,947) | (65,207)
Proceeds from sale and maturity of investments | 42,970 | 115,031
Net cash (used in) provided by investing activities | (64,183) | 40,675
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from issuance of common stock | 639 | 518
Payment of withholding taxes related to stock-based compensation to employees | (7,058) | (7,181)
Cash dividends paid | (19,527) | (16,769)
Net cash used in financing activities | (25,946) | (23,432)
(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS | (17,973) | 64,864
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 91,985 | 93,430
CASH AND CASH EQUIVALENTS, END OF PERIOD | $ 74,012 | $ 158,294

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