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Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss)
The following table summarizes the components of other comprehensive income (loss):
​
Year Ended December 31,
​
2019
 
2018
 
2017
​
(in thousands)
Unrealized gains (losses) arising during the period, before U.S. income taxes
$
51,381

 
$
(23,201
)
 
$
11,091

U.S. income taxes
(3,510
)
 
483

 
(2,374
)
Unrealized gains (losses) arising during the period, net of U.S. income taxes
47,871

 
(22,718
)
 
8,717

Less reclassification adjustment:
 
 
 
 
 
Net realized investment gains (losses)
1,081

 
(554
)
 
(835
)
U.S. income taxes
(152
)
 
39

 
333

Reclassification adjustment for investment gains (losses) realized in net income
929

 
(515
)
 
(502
)
Other comprehensive income (loss)
$
46,942

 
$
(22,203
)
 
$
9,219


In addition to the $1.1 million of net realized investment gains and $554,000 and $835,000 of net realized investment losses on available-for-sale fixed maturity securities for the years ended December 31, 2019, 2018, and 2017, the Company recognized $10.1 million of net realized and unrealized investment losses, $1.1 million of net realized and unrealized investment gains, and $1.2 million of net realized and unrealized investment losses in the respective years on its investments in bank loan participations. Net realized and unrealized gains and losses on investments for 2019 and 2018 also include $6.3 million of net gains and $6.0 million of net losses, respectively, for the change in net unrealized gains on equity securities in accordance with the Company's adoption of ASU 2016-01 effective January 1, 2018.