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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Financial Instruments, Owned, at Fair Value [Abstract]

Carrying Amounts and Estimated Fair Values of Marketable Securities, Derivatives and Senior Notes

The carrying amounts of derivative instruments and RINs credit obligations at December 31, 2018 and 2017 were as follows:



						Fair Value by Input Level
Financial Instrument		Carrying Amount				Level 1				Level 2				Level 3
		(In thousands)
December 31, 2018
Assets:
NYMEX futures contracts		$	2,473			$	2,473			$	—			$	—
Foreign currency forward contracts		25,956				—				25,956				—
Commodity price swaps		10,817				—				10,817				—
Commodity forward contracts		1,034				—				1,034				—
Total assets		$	40,280			$	2,473			$	37,807			$	—

Liabilities:
Commodity price swaps		$	956			$	—			$	956			$	—
Commodity forward contracts		1,137				—				1,137				—
RINs credit obligations ⁽¹⁾		4,084				—				4,084				—
Total liabilities		$	6,177			$	—			$	6,177			$	—



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			$	—