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Other Noncurrent Liabilities
 3 Months Ended
Mar. 31, 2019
Payables and Accruals [Abstract]  
Other Noncurrent Liabilities Other Noncurrent Liabilities
Other noncurrent liabilities include the following:
 
March 31,
2019
 
March 31,
2018
 
December 31,
2018
 
(In thousands)
Benefit plan liabilities
$
183,294

 
$
186,114

 
$
166,289

Noncurrent tax liabilities
143,723

 
127,912

 
150,960

Other
82,298

 
148,648

 
152,420

 
$
409,315

 
$
462,674

 
$
469,669