Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table provides the assets and liabilities reported at fair value and measured on a recurring basis:

				Fair Value Measurements Using
Description	Total			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
September 30, 2018
Asset derivatives	$	3,667		$	—	$	3,667		$	—
Liability derivatives	(1,564		)	—		(1,564		)	—
Bank acceptances	18,935			—		18,935			—
Rabbi trust assets	2,540			2,540		—			—
Total	$	23,578		$	2,540	$	21,038		$	—
December 31, 2017
Asset derivatives	$	712		$	—	$	712		$	—
Liability derivatives	(408		)	—		(408		)	—
Bank acceptances	16,092			—		16,092			—
Rabbi trust assets	2,554			2,554		—			—
Total	$	18,950		$	2,554	$	16,396		$	—