Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS:
Fixed maturities - available for sale, at market value (amortized cost: 2019, $6,784,594; 2018, $7,032,749)	$ 6,824,459	$ 6,962,075
Fixed maturities - available for sale, at fair value	2,350	2,337
Equity securities, at fair value	724,325	564,338
Short-term investments (cost: 2019, $458,165; 2018, $174,155)	458,180	174,131
Other invested assets (cost: 2019, $929,729; 2018, $882,647)	929,729	882,647
Other invested assets, at fair value	1,767,963	1,717,336
Cash	337,225	404,522
Total investments and cash	11,044,231	10,707,386
Accrued investment income	47,306	47,232
Premiums receivable	1,577,536	1,471,805
Reinsurance receivables - unaffiliated	1,289,292	1,295,961
Reinsurance receivables - affiliated	3,618,489	3,544,975
Income taxes	289,210	409,892
Funds held by reinsureds	248,993	238,566
Deferred acquisition costs	372,457	353,630
Prepaid reinsurance premiums	330,998	328,796
Other assets	245,153	289,962
TOTAL ASSETS	19,063,665	18,688,205
LIABILITIES:
Reserve for losses and loss adjustment expenses	10,173,469	10,167,018
Unearned premium reserve	1,951,573	1,826,868
Funds held under reinsurance treaties	38,112	41,600
Other net payable to reinsurers	255,106	316,826
Senior notes due 6/1/2044	396,984	396,954
Long term notes due 5/1/2067	236,684	236,659
Note payable - affiliated	300,000	300,000
Accrued interest on debt and borrowings	9,818	3,093
Unsettled securities payable	73,278	50,912
Other liabilities	234,515	303,610
Total liabilities	13,669,539	13,643,540
Commitments and Contingencies (Note 6)
STOCKHOLDER'S EQUITY:
Common stock, par value: $0.01; 3,000 shares authorized; 1,000 shares issued and outstanding (2019 and 2018)
Additional paid-in capital	1,100,402	1,100,315
Accumulated other comprehensive income (loss), net of deferred income tax expense (benefit) of ($7,510) at 2019 and ($33,506) at 2018	(28,106)	(126,254)
Retained earnings	4,321,830	4,070,604
Total stockholder's equity	5,394,126	5,044,665
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	$ 19,063,665	$ 18,688,205

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The unexpired portion of premiums ceded on policies in force as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195

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- Definition

The carrying amount as of the balance sheet date of the known and estimated amounts owed to insurers under reinsurance treaties or other arrangements.

+ References

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to and paid by the ceding insurer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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No definition available.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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- Definition

Carrying amount of premiums written on insurance contracts that have not been earned as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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