CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 149,805	$ 151,941
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,052	11,908
Deferred tax expense	15,877	7,755
Net realized investment (gains) losses	(1,891)	526
Change in certain assets and liabilities:
Accrued investment income	2,763	1,302
Reinsurance recoverable on loss reserves	(4,115)	1,453
Reinsurance recoverable on paid losses	(170)	(121)
Premium receivable	2,147	3,494
Deferred insurance policy acquisition costs	(983)	258
Profit commission receivable	1,121	(2,836)
Loss reserves	19,419	(18,755)
Unearned premiums	(14,894)	(5,481)
Return premium accrual	(400)	(3,100)
Current income taxes	22,527	30,983
Other, net	(19,934)	(14,446)
Net cash provided by operating activities	184,324	164,881
Cash flows from investing activities:
Purchases of investments	(280,614)	(348,746)
Proceeds from sales of investments	224,803	106,010
Proceeds from maturity of fixed income securities	222,544	202,929
Additions to property and equipment	(580)	(308)
Net cash provided by (used in) investing activities	166,153	(40,115)
Cash flows from financing activities:
Repurchase of common stock	(119,997)	(11,640)
Dividends paid	(21,111)	0
Payment of withholding taxes related to share-based compensation net share settlement	(8,899)	(5,652)
Net cash used in financing activities	(150,007)	(17,292)
Net increase in cash and cash equivalents and restricted cash and cash equivalents	200,470	107,474
Cash and cash equivalents and restricted cash and cash equivalents at beginning of period	169,056	155,038
Cash and cash equivalents and restricted cash and cash equivalents at end of period	$ 369,526	$ 262,512