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Fair Value Measurements (Tables)
 9 Months Ended
Sep. 30, 2018
Financial Instruments, Owned, at Fair Value [Abstract]  
Fair Value Measurements Of Asset and Liability Instruments
The carrying amounts of derivative instruments and RINs credit obligations at September 30, 2018 and December 31, 2017 were as follows:
 
 
 
 
Fair Value by Input Level
 
 
Carrying Amount
 
Level 1
 
Level 2
 
Level 3
 
 
(In thousands)
September 30, 2018
 
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
 
Foreign currency forward contracts
 
$
9,137

 
$
—

 
$
9,137

 
$
—

Commodity price swaps
 
1,565

 
—

 
1,565

 
—

Commodity forward contracts
 
25

 
—

 
25

 
—

Total assets
 
$
10,727

 
$
—

 
$
10,727

 
$
—

 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
NYMEX futures contracts
 
$
8,854

 
$
8,854

 
$
—

 
$
—

Commodity price swaps
 
1,615

 
—

 
1,615

 
—

Commodity forward contracts
 
4

 
—

 
4

 
—

RINs credit obligations (1)
 
5,221

 
—

 
5,221

 
—

Total liabilities
 
$
15,694

 
$
8,854

 
$
6,840

 
$
—

December 31, 2017
 
 
 
 
 
 
 
 
Assets:
 
 
 
 
 
 
 
 
Commodity forward contracts
 
$
3,840

 
$
—

 
$
3,840

 
$
—

Total assets
 
$
3,840

 
$
—

 
$
3,840

 
$
—

 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
NYMEX futures contracts
 
$
3,360

 
$
3,360

 
$
—

 
$
—

Commodity price swaps
 
2,424

 
—

 
2,424

 
—

Commodity forward contracts
 
1,020

 
—

 
1,020

 
—

RINs credit obligations (1)
 
8,931

 
—

 
8,931

 
—

Total liabilities
 
$
15,735

 
$
3,360

 
$
12,375

 
$
—



(1)
Represent obligations for RINs credits for which we do not have sufficient quantities at September 30, 2018 and December 31, 2017 to satisfy our Environmental Protection Agency (“EPA”) regulatory blending requirements.