Fair Value (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Fair Value Disclosures [Abstract]    
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following tables show the fair value of the Company’s financial assets and liabilities that are required to be measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 (amounts in thousands):
 
March 31, 2019
 
Fair Value Hierarchy
 
 
 
Quoted Prices in Active
Markets for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
 
Significant
Unobservable
Inputs (Level 3)
 
Total Fair
Value
Assets:
 
 
 
 
 
 
 
Derivative assets
$
—

 
$
3,420

 
$
—

 
$
3,420

Total assets at fair value
$
—

 
$
3,420

 
$
—

 
$
3,420

Liabilities:
 
 
 
 
 
 
 
Derivative liabilities
$
—

 
$
827

 
$
—

 
$
827

Total liabilities at fair value
$
—

 
$
827

 
$
—

 
$
827

 
December 31, 2018
 
Fair Value Hierarchy
 
 
 
Quoted Prices in Active
Markets for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
 
Significant
Unobservable
Inputs (Level 3)
 
Total Fair
Value
Assets:
 
 
 
 
 
 
 
Derivative assets
$
—

 
$
6,204

 
$
—

 
$
6,204

Total assets at fair value
$
—

 
$
6,204

 
$
—

 
$
6,204

The following tables show the fair value of the Company’s financial assets and liabilities that are required to be measured at fair value on a recurring basis as of December 31, 2018 and 2017 (amounts in thousands):
 
December 31, 2018
 
Fair Value Hierarchy
 
 
 
Quoted Prices in Active
Markets for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
 
Significant
Unobservable
Inputs (Level 3)
 
Total Fair
Value
Assets:
 
 
 
 
 
 
 
Derivative assets
$
—

 
$
6,204

 
$
—

 
$
6,204

Total assets at fair value
$
—

 
$
6,204

 
$
—

 
$
6,204

 
December 31, 2017
 
Fair Value Hierarchy
 
 
 
Quoted Prices in Active
Markets for Identical
Assets (Level 1)
 
Significant Other
Observable Inputs
(Level 2)
 
Significant
Unobservable
Inputs (Level 3)
 
Total Fair
Value
Assets:
 
 
 
 
 
 
 
Derivative assets
$
—

 
$
3,934

 
$
—

 
$
3,934

Total assets at fair value
$
—

 
$
3,934

 
$
—

 
$
3,934

Liabilities:
 
 
 
 
 
 
 
Derivative liabilities
$
—

 
$
22

 
$
—

 
$
22

Total liabilities at fair value
$
—

 
$
22

 
$
—

 
$
22