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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Cash flows from operating activities:    
Net cash provided by (used in) operating activities $ 238,697 $ 70,631
Cash flows from investing activities:    
Proceeds from sale of property and equipment 97 34
Purchases of property and equipment (6,477) (2,869)
Purchases of equity securities (2,180) (32,558)
Purchases of available-for-sale debt securities (350,075) (103,560)
Proceeds from sales of equity securities 12,576 42,830
Proceeds from sales of available-for-sale debt securities 49,110 3,985
Maturities of available-for-sale debt securities 89,723 77,676
Net cash provided by (used in) investing activities (207,226) (14,462)
Cash flows from financing activities:    
Preferred stock dividend (8) (8)
Common stock dividend (13,789) (14,679)
Purchase of treasury stock inclusive of excise taxes paid (14,198) (18,385)
Payments related to tax withholding for share-based compensation (1) (314)
Repayment of debt (1,103) (1,104)
Net cash provided by (used in) financing activities (29,099) (34,490)
Cash and cash equivalents and restricted cash and cash equivalents:    
Net increase (decrease) during the period 2,372 21,679
Balance, beginning of period 399,941 391,341
Balance, end of period $ 402,313 $ 413,020