v2.4.0.8
Shareholders' Equity (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Reclassification adjustments related to available-for-sale securities        
Gain (Loss) on Investments $ 8,471 $ (1,548) $ 35,151 $ 9,130
Income before income taxes 64,845 79,554 200,029 154,703
Tax effect (at 35%) (14,394) (21,101) (36,728) (40,605)
Net income 50,451 58,453 163,301 114,098
Reclassification out of Accumulated Other Comprehensive Income [Member]
       
Reclassification adjustments related to available-for-sale securities        
Income before income taxes 2,848 1,754 5,887 4,473
Tax effect (at 35%) (997) (614) (2,060) (1,566)
Net income 1,851 1,140 3,827 2,907
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Realized Investment Gain (Loss) [Member]
       
Reclassification adjustments related to available-for-sale securities        
Gain (Loss) on Investments 3,195 1,955 6,234 4,674
Reclassification out of Accumulated Other Comprehensive Income [Member] | Sales and Non-Credit Impairment Losses [Member]
       
Reclassification adjustments related to available-for-sale securities        
Gain (Loss) on Investments $ (347) $ (201) $ (347) $ (201)