Fair Value (Tables)
 3 Months Ended
Mar. 31, 2015
Fair Value Disclosures [Abstract]  
Schedule of fair value measurements
For assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets, the table below categorizes fair value measurements across the three levels as of March 31, 2015 and December 31, 2014 (in thousands):
 
March 31, 2015
 
Quoted Prices in Active Markets (Level 1)
 
Significant Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
 
Total
Liabilities:
 
 
 
 
 
 
 

Derivative
$
—

 
$
821

 
$
—

 
$
821


 
December 31, 2014
 
Quoted Prices in Active Markets (Level 1)
 
Significant Observable Inputs (Level 2)
 
Significant Unobservable Inputs (Level 3)
 
Total
Liabilities:
 
 
 
 
 
 
 
Derivative
$
—

 
$
1,096

 
$
—

 
$
1,096