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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Activities
Net income	$ 170,827	$ 274,167
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on the sale of investments, net	488	7,352
Loss (income) from other invested assets	2,702	(24,705)
Distribution of income from other invested assets	851	4,452
Depreciation and amortization	698	755
Stock-based compensation expense	5,106	4,807
Amortization of premium on investment securities	3,203	7,123
Deferred income tax provision	16,878	22,162
Change in:
Accrued investment income	(3,734)	3,313
Accounts receivable	(2,602)	1,009
Deferred policy acquisition costs	399	1,030
Other assets	(4,061)	4,910
Reserve for losses and LAE	(442)	(114,373)
Unearned premium reserve	(5,358)	(15,599)
Other accrued liabilities	(166)	4,226
Net cash provided by operating activities	184,789	180,629
Investing Activities
Net change in short-term investments	(95,725)	(204,276)
Purchase of investments available for sale	(798,280)	(281,565)
Proceeds from maturity of investments available for sale	412,441	54,035
Proceeds from sales of investments available for sale	333,513	493,211
Purchase of other invested assets	(1,945)	(21,796)
Return of investment from other invested assets	1,044	0
Purchase of property and equipment	(390)	(716)
Net cash (used in) provided by investing activities	(149,342)	38,893
Financing Activities
Treasury stock acquired	(21,279)	(75,422)
Payment of issuance costs for credit facility	0	(154)
Dividends paid	(26,775)	(21,592)
Net cash used in financing activities	(48,054)	(97,168)
Net (decrease) increase in cash	(12,607)	122,354
Cash at beginning of year	81,240	81,491
Cash at end of period	68,633	203,845
Supplemental Disclosure of Cash Flow Information
Income tax payments	0	0
Interest payments	(6,402)	(1,886)
Noncash Transactions
Lease liabilities arising from obtaining right-of-use assets	$ 87	$ 9,174

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