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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2016
Fair Value Disclosures [Abstract]  
Changes in Fair Value of Derivatives
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In thousands)
 
2016
 
2015
 
2016
 
2015
Change in fair value:
 
 
 
 
 
 
 
 
Recognized in earnings
 
$
(3
)
 
$
—

 
$
(10
)
 
$
(6
)
Recognized in other comprehensive income
 
(126
)
 
478

 
(814
)
 
51

 
 
$
(129
)
 
$
478

 
$
(824
)
 
$
45