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Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2013
Fair Value Disclosures [Abstract]  
Fair Value of Long-Term Debt
 
December 31,
 
2013
 
2012
 
Recorded
Amount
 
Fair Value
 
Recorded
Amount
 
Fair Value
 
(In thousands)
Long-term debt
$
1,078,864

 
$
1,109,878

 
$
699,288

 
$
764,784