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Other Comprehensive Income
 9 Months Ended
Sep. 30, 2017
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Other Comprehensive Income
Other Comprehensive Income
 
The following table summarizes the components of other comprehensive income:
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2017
 
2016
 
2017
 
2016
 
(in thousands)
Unrealized gains (losses) arising during the period, before U.S. income taxes
$
909

 
$
(802
)
 
$
14,760

 
$
31,662

U.S. income taxes
21

 
(38
)
 
(2,771
)
 
(3,115
)
Unrealized gains (losses) arising during the period, net of  U.S. income taxes
930

 
(840
)
 
11,989

 
28,547

Less reclassification adjustment:
 

 
 

 
 
 
 

Net realized investment gains
329

 
1,243

 
767

 
2,651

U.S. income tax expenses
(115
)
 
(411
)
 
(236
)
 
(844
)
Reclassification adjustment for investment gains realized in net income
214

 
832

 
531

 
1,807

Other comprehensive income (loss)
$
716

 
$
(1,672
)
 
$
11,458

 
$
26,740