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Changes in Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2020
Equity [Abstract]  
Changes in Accumulated Other Comprehensive Income ("AOCI") by Component
The changes in Accumulated other comprehensive income (“AOCI”) by component for the three months ended March 31, 2020 is summarized below:
 
 
Available-
for-
Sale
Securities
 
Foreign
Currency
Translation
 
Pension
 
AOCI
Balance at December 31, 2019
 
$
13

 
$
6,102

 
$
(2,291
)
 
$
3,824

Other comprehensive income before classification, net of tax
 
(30
)
 
(3,716
)
 
—

 
(3,746
)
Balance at March 31, 2020
 
$
(17
)
 
$
2,386

 
$
(2,291
)
 
$
78