Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Fixed maturities, available-for-sale (amortized cost of $9,950,773 in 2018 and $9,551,153 in 2017)	$ 10,043,188	$ 9,940,670
Equity securities, available-for-sale (cost of $2,667,661 in 2017)	0	5,967,847
Equity securities (cost of $2,971,856 in 2018)	5,720,945	0
Short-term investments, available-for-sale (estimated fair value approximates cost)	1,077,696	2,160,974
Total Investments	16,841,829	18,069,491
Cash and cash equivalents	2,014,168	2,198,459
Restricted cash and cash equivalents	382,264	302,387
Receivables	1,692,526	1,567,453
Reinsurance Recoverables	5,221,947	4,745,390
Deferred policy acquisition costs	474,513	465,569
Prepaid reinsurance premiums	1,331,022	1,099,757
Goodwill	2,237,975	1,777,464
Intangible assets	1,726,196	1,355,681
Other assets	1,383,823	1,223,365
Total Assets	33,306,263	32,805,016
LIABILITIES AND EQUITY
Unpaid losses and loss adjustment expenses	14,276,479	13,584,281
Life and annuity benefits	1,001,453	1,072,112
Unearned premiums	3,611,028	3,308,779
Payables to insurance and reinsurance companies	337,326	324,304
Senior long-term debt and other debt (estimated fair value of $3,030,000 in 2018 and $3,351,000 in 2017)	3,009,577	3,099,230
Other liabilities	1,796,036	1,748,460
Total Liabilities	24,031,899	23,137,166
Redeemable noncontrolling interests	174,062	166,269
Commitments and contingencies
Shareholders' equity:
Common stock	3,392,993	3,381,834
Retained earnings	5,782,310	3,776,743
Accumulated other comprehensive income (loss)	(94,650)	2,345,571
Total Shareholders' Equity	9,080,653	9,504,148
Noncontrolling interests	19,649	(2,567)
Total Equity	9,100,302	9,501,581
Total Liabilities and Equity	$ 33,306,263	$ 32,805,016