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Changes in Accumulated Other Comprehensive Income (Tables)
 12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Changes in Accumulated Other Comprehensive Income ("AOCI") by Component
The changes in Accumulated other comprehensive income (“AOCI”) by component for the year ended December 31, 2018, are summarized below:
 
 
Available-
for-
Sale
Securities
 
Foreign
Currency
Translation
 
Pension
 
AOCI
Balance at December 31, 2017
 
$
6,089

 
$
9,143

 
$
(1,917
)
 
$
13,315

Other comprehensive income before classification, net of tax
 
—

 
(3,885
)
 
721

 
(3,164
)
Amount reclassified from AOCI
 
—

 
—

 
—

 
—

Net current period other comprehensive income
 
—

 
(3,885
)
 
721

 
(3,164
)
Adoption of accounting standards (1)
 
(6,089
)
 
—

 
—

 
(6,089
)
Balance at December 31, 2018
 
—

 
$
5,258

 
$
(1,196
)
 
$
4,062

 
(1)
Upon adoption of ASC 2016-01, unrealized gains (losses) on available for sale securities were reclassified from AOCI to retained earnings