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Other Long-Term Obligations (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure Other Long Term Obligations [Abstract]  
Other Long-Term Obligations
 
 
December 31,
(In thousands)
 
2017
 
2016
Long-term lease obligations, net of current portion
 
$
26,460

 
$
23,152

Deferred proceeds
 
5,576

 
9,013

Deferred compensation
 
5,023

 
7,219

Other
 
6,216

 
2,392

 
 
$
43,275

 
$
41,776