The carrying amount of goodwill, by operating segment is as follows:
 
National Networks
 
International
and Other
 
Total
December 31, 2015
$
244,849

 
$
491,426

 
$
736,275

Purchase accounting adjustments

 
(6,040
)
 
(6,040
)
Impairment charges

 
(27,244
)
 
(27,244
)
Amortization of "second component" goodwill
(2,546
)
 

 
(2,546
)
Foreign currency translation

 
(42,737
)
 
(42,737
)
December 31, 2016
$
242,303

 
$
415,405

 
$
657,708