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Other Items Impacting Comparability (Tables)
 6 Months Ended
Jun. 30, 2017
Other Income and Expenses [Abstract]  
Other items impacting comparability
Our primary measure of segment performance as shown in Note 16, "Segment Reporting," excludes certain items we do not believe are representative of the ongoing operations of the segment. Excluding these items from our segment measure of performance allows for better year over year comparison:
 
Three months ended June 30,
 
Six months ended June 30,
 
2017
 
2016
 
2017
 
2016
 
(In thousands)
Operating tax adjustment
$
—

 
—

 
$
2,205

 
—

Restructuring
(2,574
)
 
—

 
(2,574
)
 
—

Pension-related adjustments (1)

—

 
7,650

 
—

 
7,650

Restructuring and other items, net
$
(2,574
)
 
7,650

 
$
(369
)
 
7,650

_______________
(1)
Refer to Note 12, Employee Benefit Plans for additional information.