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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Schedule of changes in accumulated other comprehensive loss associated with unrealized (losses) gains on securities
The following table summarizes the changes in the accumulated balances of other comprehensive loss associated with unrealized (losses) gains on securities during 2018, 2017 and 2016 (in thousands):
 
December 31,
 
2018
 
2017
 
2016
Beginning balance
$
(3,908
)
 
$
(3,838
)
 
$
(4,205
)
Other comprehensive loss before reclassifications
(77
)
 
(70
)
 
261

Reclassification adjustment for gains included in net loss
—

 
—

 
106

Ending balance
$
(3,985
)
 
$
(3,908
)
 
$
(3,838
)