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Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
The table below details the components of accumulated other comprehensive income at period end:

  
Pre-Tax Amount
 
Tax (Expense)Benefit
 
Net-of-Tax Amount
December 31, 2012
$
4,254

 
$
(1,641
)
 
$
2,613

Changes in net unrealized gain (loss) on investments
369

 
(144
)
 
225

Reclassification adjustment for realized gains
12

 
(5
)
 
7

March 31, 2013
$
4,635

 
$
(1,790
)
 
$
2,845