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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
The fair value hierarchy for our financial assets accounted for at fair value on a recurring basis was as follows: (in thousands):

 
 
As of December 31, 2013
 
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets
 
 
 
 
 
 
 
 
Interest rate derivatives
 
$

 
$
116

 
$

 
$
116