Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

FAIR VALUE MEASUREMENTS

Schedule of financial assets and liabilities measured at fair value

	Estimated Fair Value March 31, 2018
	Total		Input Levels Used
	Fair Value		Level 1		Level 2		Level 3
Cash and cash equivalents	$	49,867	$	49,867	$	-	$	-
Available for sale securities		192,712		-		192,712		-
Foreign currency forward contracts		21		-		21		-
Commodity futures contracts		(1,095)		(1,095)		-		-
Trading securities		63,520		63,520		-		-
Total assets measured at fair value	$	305,025	$	112,292	$	192,733	$	-
	Estimated Fair Value December 31, 2017
		Total	Input Levels Used
		Fair Value		Level 1		Level 2		Level 3
Cash and cash equivalents	$	96,314	$	96,314	$	-	$	-
Available for sale securities		171,596		1,200		170,396		-
Foreign currency forward contracts		79		-		79		-
Commodity futures contracts, net		32		32		-		-
Trading securities		60,520		60,520		-		-
Total assets measured at fair value	$	328,541	$	158,066	$	170,475	$	-
	Estimated Fair Value March 31, 2017
		Total	Input Levels Used
		Fair Value		Level 1		Level 2		Level 3
Cash and cash equivalents	$	78,555	$	78,555	$	-	$	-
Available for sale securities		189,289		2,412		186,877		-
Foreign currency forward contracts		(71)		-		(71)		-
Commodity futures contracts		26		26		-		-
Trading securities		73,025		73,025		-		-
Total assets measured at fair value	$	340,824	$	154,018	$	186,806	$	-