Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Fair Value, Liabilities Measured on Recurring Basis
The following table presents, for each applicable level within the fair value hierarchy, our net derivative assets and liabilities, including both current and noncurrent portions, measured at fair value on a recurring basis:
(in thousands)
Level 1
 
Level 2
 
Level 3
December 31, 2018
 
 
 
 
 
Total assets
$
—

 
$
1,632

 
$
—

Total liabilities
—

 
6,051

 
—

December 31, 2017
 
 
 
 
 
Total assets
$
—

 
$
1,095

 
$
—

Total liabilities
—

 
240

 
—