Revenues (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The Company's revenue by product line, and related approximate percentage of total sales, for the three months ended March 31, 2022 and 2021 were as follows:

	Three Months Ended March 31,
	2022			2021
Nylon	$	118,609	25%	$	83,789	22%
Caprolactam	70,005		15%	80,403		21%
Chemical Intermediates	135,690		28%	141,360		38%
Ammonium Sulfate	154,769		32%	70,831		19%
	$	479,073	100%	$	376,383	100%

The Company's revenues by geographic area, and related approximate percentage of total sales, for the three months ended March 31, 2022 and 2021 were as follows:

	Three Months Ended March 31,
	2022				2021
United States	$	403,018	84	%	$	300,672	80	%
International	76,055		16	%	75,711		20	%
Total	$	479,073	100	%	$	376,383	100	%

Summary of Deferred Income and Customer Advances

Below is a roll-forward of Deferred income and customer advances for the three months ended March 31, 2022:

Opening balance January 1, 2022	$	2,749
Additional cash advances	640
Less amounts recognized in revenues	(955)
Ending balance March 31, 2022	$	2,434