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CONSOLIDATED BALANCE SHEETS (USD $) | Dec. 31, 2012 | Dec. 31, 2011
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Fixed Maturity Securities [Abstract] |  |
Available-for-sale at fair value (amortized cost of $19,559,432,000 and $14,182,880,000 at December 31, 2012 and 2011, respectively) | $ 22,291,614,000 | $ 16,200,950,000
Mortgage loans on real estate (net of allowances of $11,580,000 and $11,793,000 at December 31, 2012 and 2011, respectively) | 2,300,587,000 | 991,731,000
Policy loans | 1,278,175,000 | 1,260,400,000
Funds withheld at interest | 5,594,182,000 | 5,410,424,000
Short-term investments | 288,082,000 | 88,566,000
Other invested assets | 1,159,543,000 | 1,012,541,000
Total investments | 32,912,183,000 | 24,964,612,000
Cash and cash equivalents | 1,259,892,000 | 962,870,000
Accrued investment income | 201,344,000 | 144,334,000
Premiums receivable and other reinsurance balances | 1,356,087,000 | 1,059,572,000
Reinsurance ceded receivables | 620,901,000 | 626,194,000
Deferred policy acquisition costs | 3,619,274,000 | 3,543,925,000
Other assets | 390,757,000 | 332,466,000
Total assets | 40,360,438,000 | 31,633,973,000
Liabilities and Stockholders Equity |  |
Future policy benefits | 11,372,856,000 | 9,903,886,000
Interest-sensitive contract liabilities | 13,353,502,000 | 8,394,468,000
Other policy claims and benefits | 3,160,250,000 | 2,841,373,000
Other reinsurance balances | 233,630,000 | 118,219,000
Deferred income taxes | 2,120,501,000 | 1,679,834,000
Other liabilities | 742,249,000 | 810,775,000
Long-term debt | 1,815,253,000 | 1,414,688,000
Collateral finance facility | 652,010,000 | 652,032,000
Total liabilities | 33,450,251,000 | 25,815,275,000
Stockholders Equity: |  |
Preferred stock (par value $.01 per share; 10,000,000 shares authorized; no shares issued or outstanding) | 0 | 0
Common stock (par value $.01 per share; 140,000,000 shares authorized; shares issued: 79,137,758 at December 31, 2012 and 2011) | 791,000 | 791,000
Additional paid-in-capital | 1,755,421,000 | 1,727,774,000
Retained earnings | 3,357,255,000 | 2,818,429,000
Treasury stock, at cost; 5,210,427 and 5,770,024 shares at December 31, 2012 and 2011, respectively | (312,182,000) | (346,449,000)
Accumulated other comprehensive income (loss) | 2,108,902,000 | 1,618,153,000
Total stockholders equity | 6,910,187,000 | 5,818,698,000
Total liabilities and stockholders equity | $ 40,360,438,000 | $ 31,633,973,000

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