v2.4.0.6

CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Assets |  |
Fixed maturities, available for sale, at fair value (Amortized cost 2011: $10,821,338; 2010: $10,346,243) | $ 10,940,100 | $ 10,482,897
Equity securities, available for sale, at fair value (Cost 2011: $699,566; 2010: $327,207) | 677,560 | 349,254
Other investments, at fair value | 699,320 | 519,296
Short-term investments, at amortized cost | 149,909 | 172,719
Total investments | 12,466,889 | 11,524,166
Cash and cash equivalents | 981,849 | 929,515
Restricted cash and cash equivalents | 100,989 | 115,840
Accrued interest receivable | 98,346 | 96,364
Insurance and reinsurance premium balances receivable | 1,413,839 | 1,343,665
Reinsurance recoverable on unpaid and paid losses | 1,770,329 | 1,577,547
Deferred acquisition costs | 407,527 | 359,300
Prepaid reinsurance premiums | 238,623 | 221,396
Receivable for investments sold | 3,006 | 0
Goodwill and intangible assets | 99,590 | 103,231
Other assets | 225,072 | 174,707
Total assets | 17,806,059 | 16,445,731
Liabilities |  |
Reserve for losses and loss expenses | 8,425,045 | 7,032,375
Unearned premiums | 2,454,462 | 2,333,676
Insurance and reinsurance balances payable | 206,539 | 164,927
Senior notes | 994,664 | 994,110
Payable for investments purchased | 151,941 | 20,251
Other liabilities | 129,329 | 275,422
Total liabilities | 12,361,980 | 10,820,761
Commitments and contingencies |  |
Shareholders' equity |  |
Preferred shares - Series A and B | 500,000 | 500,000
Common shares (2011: 170,159; 2010: 154,912 shares issued and 2011: 125,588; 2010: 112,393 shares outstanding) | 2,125 | 1,934
Additional paid-in capital | 2,105,386 | 2,059,708
Accumulated other comprehensive income | 128,162 | 176,821
Retained earnings | 4,155,392 | 4,267,608
Treasury shares, at cost (2011: 44,571; 2010: 42,519 shares) | (1,446,986) | (1,381,101)
Total shareholders' equity | 5,444,079 | 5,624,970
Total liabilities and shareholders' equity | $ 17,806,059 | $ 16,445,731

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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/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 03 -Paragraph 13 -Subparagraph a(2) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),13(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 60 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 97 -Paragraph 16, 17, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_UnearnedPremiums
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant