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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
CASH FROM OPERATING ACTIVITIES: |  |  |
Net income to common stockholders | $ 1,381,062 | $ 1,022,490 | $ 530,670
Adjustments to reconcile net income to net cash from operating activities: |  |  |
Net investment gains | (202,397) | (90,632) | (103,000)
Depreciation and amortization | 55,872 | 129,682 | 135,065
Noncontrolling interests | 3,892 | 8,525 | 2,315
Investment funds | (145,099) | (220,015) | (54,253)
Stock incentive plans | 49,411 | 46,680 | 49,658
Change in: |  |  |
Arbitrage trading account | (53,291) | (268,649) | (67,943)
Premiums and fees receivable | (268,171) | (364,395) | (173,618)
Reinsurance accounts | (266,307) | (433,644) | (313,525)
Deferred policy acquisition costs | (88,844) | (121,663) | (38,691)
Current income taxes | (3,534) | (43,890) | 49,021
Deferred income taxes | (64,712) | 7,630 | (34,057)
Reserves for losses and loss expenses | 1,684,254 | 1,635,774 | 1,176,049
Unearned premiums | 466,590 | 786,627 | 415,956
Other | 19,878 | 89,467 | 43,039
Net cash from operating activities | 2,568,604 | 2,183,987 | 1,616,686
CASH FLOWS (USED IN) FROM INVESTING ACTIVITIES: |  |  |
Proceeds from sale of fixed maturity securities | 797,948 | 1,842,139 | 3,832,555
Proceeds from sale of equity securities | 82,319 | 126,980 | 114,763
Distributions from (contributions to) investment funds | (24,623) | (101,050) | 3,042
Proceeds from maturities and prepayments of fixed maturity securities | 4,891,179 | 6,067,230 | 3,864,327
Purchase of fixed maturity securities | (8,036,680) | (10,716,748) | (7,551,591)
Purchase of equity securities | (340,482) | (464,645) | (253,031)
Real estate (purchased) sold | (45,920) | 166,886 | 178,934
Change in loans receivable | (83,212) | (27,421) | 1,467
Net additions to property, furniture and equipment | (52,684) | (66,634) | (38,171)
Change in balances due from security brokers | 14,337 | (17,983) | (26,515)
Cash received in connection with business disposition | 906,789 | 0 | 0
Payment for business purchased, net of cash acquired | (49,572) | 0 | 0
Net cash (used in) from investing activities | (1,891,355) | (2,989,146) | 119,696
CASH FLOWS (USED IN) FROM FINANCING ACTIVITIES: |  |  |
Net (payments) proceeds from issuance of debt | (3,309) |  |
Net (payments) proceeds from issuance of debt |  | 1,034,107 | 741,637
Repayment of senior notes and other debt | (426,503) | (504,952) | (652,751)
Cash dividends to common stockholders | (235,192) | (355,736) | (84,147)
Purchase of common treasury shares | (94,140) | (122,426) | (346,357)
Other, net | (12,848) | (45,162) | (56,225)
Net cash (used in) from financing activities | (771,992) | 5,831 | (397,843)
Net impact on cash due to change in foreign exchange rates | (24,754) | (4,195) | 10,117
Net (decrease) increase in cash and cash equivalents | (119,497) | (803,523) | 1,348,656
Cash and cash equivalents at beginning of year | 1,568,843 | 2,372,366 | 1,023,710
Cash and cash equivalents at end of year | $ 1,449,346 | $ 1,568,843 | $ 2,372,366

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