v2.4.0.6
Investments (Rollforward of The Amount of Other-Than-Temporary Impairments Related to Credit Losses Recognized in Earnings for Which a Portion of an Other-Than-Temporary Impairment was Recognized in Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Investment [Line Items]    
Portion of other-than-temporary impairments recognized in other comprehensive income $ 0 $ 27
Net other-than-temporary impairments 0 (134)
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]    
Balance, beginning 838 2,370
Additions:    
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized 0 0
Amount related to credit loss for which an other-than-temporary impairment was previously recognized 0 66
Reductions:    
Securities sold during the period (27) (248)
Securities for which the amount previously recognized in other comprehensive income was recognized in earnings, because the Company intends to sell the security or is more likely than not the Company will be required to sell the security 0 0
Increases in cash flows expected to be collected that are recognized over the remaining life of the security 0 0
Balance, ending 811 2,188
Recognized Due To Intent To Sell Securities [Member]
   
Investment [Line Items]    
Portion of other-than-temporary impairments recognized in other comprehensive income 0 0
Recognized Due To Required Sales Of Securities [Member]
   
Investment [Line Items]    
Portion of other-than-temporary impairments recognized in other comprehensive income $ 0 $ 0