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 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Investment [Line Items]        
Net other-than-temporary impairments recognized in earnings $ 209 $ 0 $ 343 $ 0
Portion of other-than-temporary impairments recognized in other comprehensive income 25 0 52 0
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]        
Balance, beginning 520 2,875 564 3,098
Additions:        
Amount related to credit loss for which an other-than-temporary impairment was not previously recognized 11 0 11 0
Amount related to credit loss for which an other-than-temporary impairment was previously recognized 41 0 50 0
Reductions:        
Securities sold during the period (396) (246) (449) (469)
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 0 0
Increases in cash flows expected to be collected that are recognized over the remaining life of the security 0 0 0 0
Balance, ending 176 2,629 176 2,629
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