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Restructuring and Other (Tables)
 12 Months Ended
Dec. 31, 2018
Restructuring and Related Activities [Abstract]  
Restructuring and Other Reserve Activities
Restructuring and other reserve activities are summarized as follows (in thousands):
 
Year Ended December 31,
 
2018
 
2017
Reserve balance at January 1
$
2,452

 
$
1,824

Restructuring charges
8,323

 
5,136

Other charges
5,259

 
2,424

Non-cash restructuring and other
(975
)
 
(264
)
Cash payments
(13,088
)
 
(6,668
)
Reserve balance at December 31
$
1,971

 
$
2,452