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Reconciliation of Other Comprehensive Income (Loss)
6 Months Ended
Jun. 30, 2011
Reconciliation of Other Comprehensive Income (Loss) [Abstract]  
Reconciliation of Other Comprehensive Income (Loss)
Note 6.  Reconciliation of Other Comprehensive Income (Loss)

   
Three Months Ended
June 30,
  
Six Months Ended
June 30,
 
   
2011
  
2010
  
2011
  
2010
 
              
Net realized gains on investments included in net income
 $70  $13  $71  $13 
                  
Other components of comprehensive income:
                
Net pre-tax unrealized gains on investments arising during period
 $3,470  $5,232  $2,248  $9,803 
Reclassification adjustment
  (70)  (13)  (71)  (13)
Net pre-tax unrealized gains on investments recognized in other comprehensive income
    3,400     5,219     2,177     9,790 
Fair value adjustment to derivative financial instrument
  74   (98)  265   (186)
Deferred income tax attributable to other comprehensive income
  (1,216)  (1,792)  (855)  (3,361)
Change in accumulated other comprehensive income
  2,258   3,329   1,587   6,243 
Accumulated other comprehensive loss, beginning of period
  (2,778)  (2,491)  (2,107)  (5,405)
Accumulated other comprehensive income (loss), end of period
 $(520) $838  $(520) $838