Fair Value Measurements (Tables)

6 Months Ended

Jun. 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 June 30, 2018 and December 31, 2017 were as follows:

			Fair Value by Input Level
	Carrying Amount		Level 1		Level 2		Level 3
	(In thousands)
June 30, 2018
Assets:
Foreign currency forward contracts	$	21,491	$	—	$	21,491	$	—
Commodity price swaps	200		—		200		—
Commodity forward contracts	2,275		—		2,275		—
Total assets	$	23,966	$	—	$	23,966	$	—
Liabilities:
NYMEX futures contracts	$	7,098	$	7,098	$	—	$	—
Commodity price swaps	3,934		—		3,934		—
Commodity forward contracts	3,720		—		3,720		—
RINs credit obligations (1)	4,226		—		4,226		—
Total liabilities	$	18,978	$	7,098	$	11,880	$	—

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	$	—