AdvanSix (ASIX) 10-Q 2 Aug 24 2024 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2024	Jul. 26, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	1-37774
Entity Registrant Name	AdvanSix Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-2525089
Entity Address, Address Line One	300 Kimball Drive
Entity Address, Address Line Two	Suite 101
Entity Address, City or Town	Parsippany
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07054
City Area Code	973
Local Phone Number	526-1800
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	ASIX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		26,712,936
Amendment Flag	false
Entity Central Index Key	0001673985
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Sales	$ 453,479	$ 427,940	$ 790,308	$ 828,484
Costs, expenses and other:
Costs of goods sold	372,111	360,017	705,975	690,059
Selling, general and administrative expenses	24,431	24,011	48,024	49,126
Interest expense, net	3,514	1,954	6,213	3,221
Other non-operating (income) expense, net	1,351	(1,325)	1,441	(1,433)
Total costs, expenses and other	401,407	384,657	761,653	740,973
Income before taxes	52,072	43,283	28,655	87,511
Income tax expense	13,145	10,555	7,124	19,829
Net income	$ 38,927	$ 32,728	$ 21,531	$ 67,682
Earnings per common share
Basic (in dollars per share)	$ 1.45	$ 1.19	$ 0.80	$ 2.46
Diluted (in dollars per share)	$ 1.43	$ 1.16	$ 0.79	$ 2.39
Weighted average common shares outstanding
Basic (in shares)	26,839,429	27,494,555	26,859,044	27,547,874
Diluted (in shares)	27,150,347	28,113,402	27,251,326	28,348,266

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 38,927	$ 32,728	$ 21,531	$ 67,682
Foreign exchange translation adjustment	(27)	(125)	(42)	(158)
Cash-flow hedges	0	0	7	(150)
Other comprehensive loss, net of tax	(27)	(125)	(35)	(308)
Comprehensive income	$ 38,900	$ 32,603	$ 21,496	$ 67,374

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 12,105	$ 29,768
Accounts and other receivables – net	170,155	165,393
Inventories – net	175,827	211,831
Taxes receivable	179	1,434
Other current assets	20,326	11,378
Total current assets	378,592	419,804
Property, plant and equipment – net	878,491	852,642
Operating lease right-of-use assets	91,876	95,805
Goodwill	56,192	56,192
Intangible assets	44,668	46,193
Other assets	28,131	25,384
Total assets	1,477,950	1,496,020
Current liabilities:
Accounts payable	189,326	259,068
Accrued liabilities	50,223	44,086
Income taxes payable	1,007	8,033
Operating lease liabilities – short-term	31,250	32,053
Deferred income and customer advances	1,148	15,678
Total current liabilities	272,954	358,918
Deferred income taxes	151,803	151,059
Operating lease liabilities – long-term	60,783	63,961
Line of credit – long-term	230,000	170,000
Postretirement benefit obligations	5,919	3,660
Other liabilities	9,894	9,185
Total liabilities	731,353	756,783
COMMITMENTS AND CONTINGENCIES (Note 9)
STOCKHOLDERS' EQUITY
Common stock, par value $0.01; 200,000,000 shares authorized; 32,959,588 shares issued and 26,709,407 outstanding at June 30, 2024; 32,598,946 shares issued and 26,750,471 outstanding at December 31, 2023	330	326
Preferred stock, par value $0.01; 50,000,000 shares authorized and 0 shares issued and outstanding at June 30, 2024 and December 31, 2023	0	0
Treasury stock at par (6,250,181 shares at June 30, 2024; 5,848,475 shares at December 31, 2023)	(63)	(58)
Additional paid-in capital	132,786	138,046
Retained earnings	617,723	605,067
Accumulated other comprehensive loss	(4,179)	(4,144)
Total stockholders' equity	746,597	739,237
Total liabilities and stockholders' equity	$ 1,477,950	$ 1,496,020

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	32,959,588	32,598,946
Common stock, shares outstanding (in shares)	26,709,407	26,750,471
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Treasury stock (in shares)	6,250,181	5,848,475

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income	$ 21,531	$ 67,682
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	38,264	35,958
Loss on disposal of assets	261	568
Deferred income taxes	751	3,894
Stock-based compensation	4,404	4,449
Amortization of deferred financing fees	309	309
Operational asset adjustments	1,200	0
Changes in assets and liabilities, net of business acquisitions:
Accounts and other receivables	(6,004)	22,123
Inventories	36,004	(10,484)
Taxes receivable	1,255	8,329
Accounts payable	(61,681)	(45,878)
Income taxes payable	(7,026)	(1,338)
Accrued liabilities	6,149	(5,744)
Deferred income and customer advances	(14,530)	(32,097)
Other assets and liabilities	(6,889)	(11,192)
Net cash provided by operating activities	13,998	36,579
Cash flows from investing activities:
Expenditures for property, plant and equipment	(68,883)	(43,894)
Other investing activities	(3,736)	(2,034)
Net cash used for investing activities	(72,619)	(45,928)
Cash flows from financing activities:
Borrowings from line of credit	257,500	230,500
Payments of line of credit	(197,500)	(205,500)
Principal payments of finance leases	(502)	(456)
Dividend payments	(8,582)	(8,004)
Purchase of treasury stock	(10,385)	(28,385)
Issuance of common stock	427	745
Net cash provided by (used for) financing activities	40,958	(11,100)
Net change in cash and cash equivalents	(17,663)	(20,449)
Cash and cash equivalents at beginning of period	29,768	30,985
Cash and cash equivalents at the end of period	12,105	10,536
Supplemental non-cash investing activities:
Capital expenditures included in accounts payable	14,932	9,832
Supplemental cash activities:
Cash paid for interest	6,015	3,027
Cash paid for income taxes	$ 13,587	$ 7,024

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		31,977,593
Beginning balance at Dec. 31, 2022	$ 738,180	$ 320	$ 174,585	$ 567,517	$ (45)	$ (4,197)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	34,954			34,954
Comprehensive income
Foreign exchange translation adjustments	(33)					(33)
Cash-flow hedges	(150)					(150)
Other comprehensive loss, net of tax	(183)					(183)
Issuance of common stock (in shares)		555,249
Issuance of common stock	622	$ 5	617
Purchase of treasury stock	(13,499)		(13,496)		(3)
Stock-based compensation	2,013		2,013
Dividends	(4,020)		112	(4,132)
Ending balance (in shares) at Mar. 31, 2023		32,532,842
Ending balance at Mar. 31, 2023	758,067	$ 325	163,831	598,339	(48)	(4,380)
Beginning balance (in shares) at Dec. 31, 2022		31,977,593
Beginning balance at Dec. 31, 2022	738,180	$ 320	174,585	567,517	(45)	(4,197)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	67,682
Comprehensive income
Foreign exchange translation adjustments	(158)
Cash-flow hedges	(150)
Ending balance (in shares) at Jun. 30, 2023		32,577,862
Ending balance at Jun. 30, 2023	774,359	$ 326	151,706	626,885	(53)	(4,505)
Beginning balance (in shares) at Mar. 31, 2023		32,532,842
Beginning balance at Mar. 31, 2023	758,067	$ 325	163,831	598,339	(48)	(4,380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	32,728			32,728
Comprehensive income
Foreign exchange translation adjustments	(125)					(125)
Cash-flow hedges	0
Other comprehensive loss, net of tax	(125)					(125)
Issuance of common stock (in shares)		45,020
Issuance of common stock	123	$ 1	122
Purchase of treasury stock	(14,886)		(14,881)		(5)
Stock-based compensation	2,436		2,436
Dividends	(3,984)		198	(4,182)
Ending balance (in shares) at Jun. 30, 2023		32,577,862
Ending balance at Jun. 30, 2023	$ 774,359	$ 326	151,706	626,885	(53)	(4,505)
Beginning balance (in shares) at Dec. 31, 2023	26,750,471	32,598,946
Beginning balance at Dec. 31, 2023	$ 739,237	$ 326	138,046	605,067	(58)	(4,144)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(17,396)			(17,396)
Comprehensive income
Foreign exchange translation adjustments	(15)					(15)
Cash-flow hedges	7					7
Other comprehensive loss, net of tax	(8)					(8)
Issuance of common stock (in shares)		323,989
Issuance of common stock	426	$ 3	423
Purchase of treasury stock	(7,023)		(7,020)		(3)
Stock-based compensation	2,211		2,211
Dividends	(4,290)		163	(4,453)
Ending balance (in shares) at Mar. 31, 2024		32,922,935
Ending balance at Mar. 31, 2024	$ 713,157	$ 329	133,823	583,218	(61)	(4,152)
Beginning balance (in shares) at Dec. 31, 2023	26,750,471	32,598,946
Beginning balance at Dec. 31, 2023	$ 739,237	$ 326	138,046	605,067	(58)	(4,144)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	21,531
Comprehensive income
Foreign exchange translation adjustments	(42)
Cash-flow hedges	$ 7
Ending balance (in shares) at Jun. 30, 2024	26,709,407	32,959,588
Ending balance at Jun. 30, 2024	$ 746,597	$ 330	132,786	617,723	(63)	(4,179)
Beginning balance (in shares) at Mar. 31, 2024		32,922,935
Beginning balance at Mar. 31, 2024	713,157	$ 329	133,823	583,218	(61)	(4,152)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	38,927			38,927
Comprehensive income
Foreign exchange translation adjustments	(27)					(27)
Cash-flow hedges	0
Other comprehensive loss, net of tax	(27)					(27)
Issuance of common stock (in shares)		36,653
Issuance of common stock	1	$ 1	0
Purchase of treasury stock	(3,362)		(3,360)		(2)
Stock-based compensation	2,193		2,193
Dividends	$ (4,292)		130	(4,422)
Ending balance (in shares) at Jun. 30, 2024	26,709,407	32,959,588
Ending balance at Jun. 30, 2024	$ 746,597	$ 330	$ 132,786	$ 617,723	$ (63)	$ (4,179)

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	3 Months Ended				74 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024
Statement of Stockholders' Equity [Abstract]
Stock repurchased during period (in shares)	141,242	260,464	410,862	333,054	6,250,181

Organization, Operations and Ba

Organization, Operations and Basis of Presentation	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Organization, Operations and Basis of Presentation	Organization, Operations and Basis of Presentation Description of Business AdvanSix Inc. ("AdvanSix," the "Company," "we" or "our") is a diversified chemistry company playing a critical role in global supply chains, innovating and delivering essential products for our customers in a wide variety of end markets and applications that touch people’s lives, such as building and construction, fertilizers, agrochemicals, plastics, solvents, packaging, paints, coatings, adhesives and electronics. Our reliable and sustainable supply of quality products emerges from the integrated value chain of our five U.S.-based manufacturing facilities. AdvanSix strives to deliver best-in-class customer experiences and differentiated products in the industries of nylon solutions, plant nutrients and chemical intermediates, guided by our core values of Safety, Integrity, Accountability and Respect. Basis of Presentation The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the accompanying unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of the Company's financial position as of June 30, 2024, and its results of operations for the three and six months ended June 30, 2024 and 2023 and cash flows for the six months ended June 30, 2024 and 2023. The year-end Condensed Consolidated Balance Sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. The results of operations of any interim period are not necessarily indicative of the results of operations to be expected for the full fiscal year. These financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the "2023 Form 10-K"). All intercompany transactions have been eliminated. Certain prior period amounts have been reclassified for consistency with the current period presentation. It is our practice to establish actual quarterly closing dates using a predetermined fiscal calendar, which requires our businesses to close their books on a Saturday in order to minimize the potentially disruptive effects of quarterly closing on our business processes. Historically, the effects of this practice have generally not been significant to reported results for any quarter and only existed within a reporting year. In the event that differences in actual closing dates are material to year-over-year comparisons of quarterly or year-to-date results, we will provide the appropriate disclosures. Our actual closing dates for the three and six months ended June 30, 2024 and 2023 were June 29, 2024 and July 1, 2023, respectively. Liabilities to creditors to whom we have issued checks that remained outstanding at June 30, 2024 and December 31, 2023 aggregated to $3.4 million and $2.9 million, respectively, and were included in Cash and cash equivalents and Accounts payable in the Condensed Consolidated Balance Sheets. The Company's Board of Directors (the "Board") has authorized share repurchase programs to repurchase shares of the Company's common stock as follows: Date of Authorization Authorized Amount (millions) Authorized Amount Remaining as of June 30, 2024 (millions) May 4, 2018 $ 75.0 $ — February 22, 2019 75.0 — February 17, 2023 75.0 62.0 Totals $ 225.0 $ 62.0 Repurchases may be made from time to time on the open market in accordance with Rule 10b-18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), including through the use of trading plans intended to qualify under Rule 10b5-1 of the Exchange Act. The size and timing of these repurchases will depend on pricing, market and economic conditions, legal and contractual requirements and other factors. The share repurchase program has no expiration date and may be modified, suspended or discontinued at any time. The par value of the shares repurchased is applied to Treasury stock and the excess of the purchase price over par value is applied to Additional paid-in capital. As of June 30, 2024, the Company has repurchased a total of 6,250,181 shares of common stock, including 1,004,725 shares withheld to cover tax withholding obligations in connection with the vesting of awards, for an aggregate of $192.4 million at a weighted average market price of $30.78 per share. As of June 30, 2024, $62.0 million remained available for share repurchases under the current authorization. During the period July 1, 2024 through July 26, 2024, 1,933 additional shares were repurchased for tax withholding obligations in connection with the vesting of equity awards at a weighted average market price of $21.64, and no additional shares were repurchased under the currently authorized repurchase program.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recent Accounting Pronouncements – The Company considers the applicability and impact of all Accounting Standards Updates (“ASUs”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not discussed below were assessed and determined to be either not applicable or are expected to have minimal impact on our consolidated financial position or results of operations. On December 13, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this ASU require that public business entities, on an annual basis, disclose specific categories in the rate reconciliation and provide additional information for reconciling items that are equal to or greater than 5 percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate. The amendments also require that the Company disclose the following (net of refunds received): (1) the amount of income taxes paid disaggregated by federal (national), state, and foreign taxes and (2) the amount of income taxes paid disaggregated by individual jurisdictions in which income taxes paid is equal to or greater than 5 percent of total income taxes paid. Additionally, the amendments in this update eliminate the requirement for all entities to disclose the nature and estimate of the range of the reasonably possible change in the unrecognized tax benefits balance in the next 12 months or to make a statement that an estimate of the range cannot be made, and remove the requirement to disclose the cumulative amount of each type of temporary difference when a deferred tax liability is not recognized because of the exceptions to comprehensive recognition of deferred taxes related to subsidiaries and corporate joint ventures. The guidance is effective for public business entities for annual periods beginning after December 15, 2024. Early adoption of the amendments in this update are permitted for annual financial statements that have not yet been issued. The Company is evaluating the pronouncement and does not expect adoption to have a material impact on the Company's consolidated financial position or results of operations. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280). The amendments in this ASU require incremental disclosures about the Company's reportable segments, but do not change the definition of a segment or the guidance for determining reportable segments. The incremental disclosures should include (1) significant segment expenses that are regularly provided to the chief operating decision maker ("CODM") and included within each reported measure of segment profit or loss, (2) an amount for other segment items by reportable segment and a description of its composition, (3) profit or loss and assets currently required by Topic 280 in interim periods, (4) clarification if the CODM uses more than one measure of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources and (5) the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. The guidance is effective for public entities with fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. Additionally, public entities should apply the amendments retrospectively to all prior periods presented in the financial statements, unless impractical. The Company is evaluating the pronouncement and does not expect adoption to have a material impact on the Company's consolidated financial position or results of operations.

Revenues

Revenues	6 Months Ended
	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Revenue Recognition We serve approximately 400 customers annually in approximately 45 countries across a wide variety of industries. For the three months ended June 30, 2024 and 2023, the Company's ten largest customers accounted for approximately 39% and 40% of total sales, respectively. For each of the six months ended June 30, 2024 and 2023, the Company's ten largest customers accounted for approximately 38% of total sales. We typically sell to customers under master service agreements, with primarily one-year terms, or by purchase orders. We have historically experienced low customer turnover and have long-standing customer relationships, which span decades. Our largest customer is Shaw Industries Group, Inc. (“Shaw”), a significant consumer of caprolactam and Nylon 6 resin, to whom we sell under a long-term agreement. For the three months ended June 30, 2024 and 2023 the Company's sales to Shaw were 9% and 10% of our total sales, respectively. For the six months ended June 30, 2024 and 2023, the Company's sales to Shaw were 9% and 10% of our total sales, respectively. The Company's revenue by product line, and related approximate percentage of total sales, for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Nylon $ 103,217 23% $ 92,953 22% $ 187,606 24% $ 192,325 23% Caprolactam 81,303 18% 74,682 18% 142,779 18% 147,073 18% Ammonium Sulfate 139,674 31% 138,940 32% 224,936 28% 253,157 31% Chemical Intermediates 129,285 28% 121,365 28% 234,987 30% 235,929 28% Total $ 453,479 100% $ 427,940 100% $ 790,308 100% $ 828,484 100% The Company's revenues by geographic area, and related approximate percentage of total sales, for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 United States $ 401,859 89% $ 367,608 86% $ 686,447 87 % $ 688,534 83 % International 51,620 11% 60,332 14% 103,861 13 % 139,950 17 % Total $ 453,479 100% $ 427,940 100% $ 790,308 100 % $ 828,484 100 % Deferred Income and Customer Advances The Company defers revenues when cash payments are received in advance of our performance. Below is a roll-forward of Deferred income and customer advances for the six months ended June 30, 2024: Opening balance January 1, 2024 $ 15,678 Additional cash advances 393 Less amounts recognized in revenues (14,923) Ending balance June 30, 2024 $ 1,148 The Company expects to recognize as revenue the June 30, 2024 ending balance of Deferred income and customer advances within one year or less.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The computation of basic and diluted earnings per share ("EPS") is based on Net income divided by the basic weighted average number of common shares outstanding and diluted weighted average number of common shares outstanding, respectively. The details of the basic and diluted EPS calculations for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Basic Net income $ 38,927 $ 32,728 $ 21,531 $ 67,682 Weighted average common shares outstanding 26,839,429 27,494,555 26,859,044 27,547,874 EPS – Basic $ 1.45 $ 1.19 $ 0.80 $ 2.46 Diluted Dilutive effect of equity awards and other stock-based holdings 310,918 618,847 392,282 800,392 Weighted average common shares outstanding 27,150,347 28,113,402 27,251,326 28,348,266 EPS – Diluted $ 1.43 $ 1.16 $ 0.79 $ 2.39 Diluted EPS is computed based upon the weighted average number of common shares outstanding for the period plus the dilutive effect of common stock equivalents using the treasury stock method and the average market price of our common stock for the period. The diluted EPS calculations exclude the effect of stock options when the options’ assumed proceeds exceed the average market price of the common shares during the period. The anti-dilutive common stock equivalents outstanding at the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Options and stock equivalents 1,057,349 503,354 1,127,661 404,009 Dividend activity for the three and six months ended June 30, 2024 and 2023 was as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Cash dividends declared per share $ 0.16 $ 0.145 $ 0.32 $ 0.29 Aggregate dividends paid to shareholders $ 4,292 $ 3,984 $ 8,582 $ 8,004

Accounts and Other Receivables

Accounts and Other Receivables - Net	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Accounts and Other Receivables - Net	Accounts and Other Receivables – Net June 30, December 31, Accounts receivables $ 161,279 $ 155,267 Other 9,554 10,959 Total accounts and other receivables 170,833 166,226 Less – allowance for doubtful accounts (678) (833) Total accounts and other receivables – net $ 170,155 $ 165,393

Inventories

Inventories	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Inventories	Inventories June 30, December 31, Raw materials $ 100,565 $ 159,240 Work in progress 45,557 54,936 Finished goods 61,130 61,891 Spares and other 32,626 30,931 239,878 306,998 Reduction to LIFO cost basis (64,051) (95,167) Total inventories $ 175,827 $ 211,831 Substantially all of the Company’s inventories at June 30, 2024 and December 31, 2023 are valued at the lower of cost or market using the last-in, first-out (“LIFO”) method. However, approximately 11% was valued at average cost using the first-in, first-out (“FIFO”) method at June 30, 2024. The excess of replacement cost over the carrying value of total inventories subject to LIFO was $65.7 million and $65.3 million at June 30, 2024 and December 31, 2023, respectively.

Leases

Leases	6 Months Ended
	Jun. 30, 2024
Leases [Abstract]
Leases	Leases We determine if an arrangement is a lease at inception. Operating leases are included in Operating lease right-of-use assets ("ROU"), Operating lease liabilities – short-term, and Operating lease liabilities – long-term in our Condensed Consolidated Balance Sheets. Finance leases are included in Property, plant and equipment – net, Accounts payable, and Other liabilities in our Condensed Consolidated Balance Sheets. The components of lease expense were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Finance lease cost: Amortization of right-of-use asset $ 264 $ 216 $ 508 $ 438 Interest on lease liabilities 39 23 77 41 Total finance lease cost 303 239 585 479 Operating lease cost 10,797 11,592 22,483 22,841 Short-term lease cost 1,141 1,511 2,334 2,537 Total lease cost $ 12,241 $ 13,342 $ 25,402 $ 25,857 As of June 30, 2024, we have additional operating leases that have not yet commenced for approximately $99.2 million. These leases are expected to commence during the second half of 2024 and in 2025 with lease terms of up to 6 Years.
Leases	Leases We determine if an arrangement is a lease at inception. Operating leases are included in Operating lease right-of-use assets ("ROU"), Operating lease liabilities – short-term, and Operating lease liabilities – long-term in our Condensed Consolidated Balance Sheets. Finance leases are included in Property, plant and equipment – net, Accounts payable, and Other liabilities in our Condensed Consolidated Balance Sheets. The components of lease expense were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Finance lease cost: Amortization of right-of-use asset $ 264 $ 216 $ 508 $ 438 Interest on lease liabilities 39 23 77 41 Total finance lease cost 303 239 585 479 Operating lease cost 10,797 11,592 22,483 22,841 Short-term lease cost 1,141 1,511 2,334 2,537 Total lease cost $ 12,241 $ 13,342 $ 25,402 $ 25,857 As of June 30, 2024, we have additional operating leases that have not yet commenced for approximately $99.2 million. These leases are expected to commence during the second half of 2024 and in 2025 with lease terms of up to 6 Years.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Intangible assets with finite lives acquired through a business combination are recorded at fair value, less accumulated amortization. Customer relationships and trade-names are amortized on a straight-line basis over their expected useful lives of 15 to 20 years and 5 years, respectively. Goodwill There was no change in the carrying amount of goodwill for the six months ended June 30, 2024. Finite-Lived Intangible Assets Intangible assets subject to amortization were as follows: June 30, 2024 December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value Customer relationships $ 36,820 $ (4,713) $ 32,107 $ 36,820 $ (3,760) $ 33,060 Licenses 18,451 (6,458) 11,993 18,451 (5,996) 12,455 Trade names 1,100 (532) 568 1,100 (422) 678 Total $ 56,371 $ (11,703) $ 44,668 $ 56,371 $ (10,178) $ 46,193 For each of the three months ended June 30, 2024 and June 30, 2023, the Company recorded amortization expense on intangible assets of $0.8 million. For each of the six months ended June 30, 2024 and June 30, 2023, the Company recorded amortization expense on intangible assets of $1.5 million.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company is subject to a number of lawsuits, investigations and disputes, some of which may involve substantial amounts claimed, arising out of the conduct of the Company or other third-parties in the normal and ordinary course of business. A liability is recognized for any contingency that is probable of occurrence and reasonably estimable. The Company continually assesses the likelihood of adverse judgments or outcomes in these matters, as well as potential ranges of possible losses, based on an analysis of each matter with the assistance of legal counsel and, if applicable, other experts. We assumed from Honeywell International Inc. ("Honeywell") all health, safety and environmental (“HSE”) liabilities and compliance obligations related to the past and future operations of our current business as of the spin-off, as well as all HSE liabilities associated with the three manufacturing locations assumed from Honeywell that are used in our current operations, including any cleanup or other liabilities related to any contamination that may have occurred at such locations in the past. Honeywell retained all HSE liabilities related to former business locations or the operation of our former businesses. Although we have ongoing environmental remedial obligations at certain of our facilities, in the past three years, the associated remediation costs have not been material, and we do not expect our known remediation costs to have a material adverse effect on the Company's consolidated financial position or results of operations.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes was $13.1 million and $10.6 million for the three months ended June 30, 2024 and 2023, respectively, resulting in an effective tax rate of 25.2% and 24.4%, respectively. The provision for income taxes was $7.1 million and $19.8 million for the six months ended June 30, 2024 and 2023, respectively, resulting in an effective tax rate of 24.9% and 22.7%, respectively. The Company’s provision for income taxes in interim periods is computed by applying an estimated annual effective tax rate against Income before taxes for the period in addition to recording any tax effects of discrete items for the quarter. The Company’s effective tax rate for the three and six months ended June 30, 2024 was higher than the U.S. federal statutory rate, due to the impacts of state taxes and executive compensation deduction limitations which generally increase the tax rate, partially offset by tax credits which generally decrease the tax rate. The Company’s effective tax rate for the three and six months ended June 30, 2023 differed from the U.S. federal statutory rate, due to the impacts of state taxes and executive compensation deduction limitations which generally increase the tax rate, offset by tax credits and the foreign-derived intangible income deduction which generally decrease the tax rate. Additionally, discrete tax adjustments recorded in the first half of 2023 relating to the vesting of equity compensation and changes in state tax legislation resulted in a net 0.9% decrease to the year-to-date effective tax rate.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Financial and non-financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The pension plan assets are invested in collective investment trust funds. These investments are measured at fair value using the net asset value per share as a practical expedient. Investments valued using the net asset value method (NAV) (or its equivalent) practical expedient are excluded from the fair value hierarchy disclosure. The Company’s Condensed Consolidated Balance Sheets also include Cash and cash equivalents, Accounts receivable and Accounts payable all of which are recorded at amounts which approximate fair value. The Company also has assets that are required to be recorded at fair value on a non-recurring basis. These assets are evaluated when certain triggering events occur (including a decrease in estimated future cash flows) that indicate the asset should be evaluated for impairment which could result in such assets being measured at fair value. Goodwill must be evaluated at least annually. Our annual evaluation occurred on October 28, 2023 and we concluded that an impairment for goodwill did not occur.

Supplier Finance Program

Supplier Finance Program	6 Months Ended
	Jun. 30, 2024
Payables and Accruals [Abstract]
Supplier Finance Program	Supplier Finance Programs The Company has entered into a supply chain finance program with a financial intermediary providing participating suppliers the option to be paid by the intermediary earlier than the original invoice due date. AdvanSix’s responsibility is limited to making payments to the intermediary based upon payment terms negotiated with the suppliers, regardless of whether the intermediary pays the supplier in advance of the original due date. The Company’s payment terms with suppliers are consistent, regardless of whether a vendor participates in the supply chain finance program or not. All related agreements are terminable by either party upon at least 30 days’ notice. Accounts payable

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events As announced on August 2, 2024, the Board declared a quarterly cash dividend of $0.16 per share on the Company's common stock, payable on August 27, 2024 to stockholders of record as of the close of business on August 13, 2024.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net income	$ 38,927	$ (17,396)	$ 32,728	$ 34,954	$ 21,531	$ 67,682

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the accompanying unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of the Company's financial position as of June 30, 2024, and its results of operations for the three and six months ended June 30, 2024 and 2023 and cash flows for the six months ended June 30, 2024 and 2023. The year-end Condensed Consolidated Balance Sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. The results of operations of any interim period are not necessarily indicative of the results of operations to be expected for the full fiscal year. These financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (the "2023 Form 10-K"). All intercompany transactions have been eliminated. Certain prior period amounts have been reclassified for consistency with the current period presentation. It is our practice to establish actual quarterly closing dates using a predetermined fiscal calendar, which requires our businesses to close their books on a Saturday in order to minimize the potentially disruptive effects of quarterly closing on our business processes. Historically, the effects of this practice have generally not been significant to reported results for any quarter and only existed within a reporting year. In the event that differences in actual closing dates are material to year-over-year comparisons of quarterly or year-to-date results, we will provide the appropriate disclosures. Our actual closing dates for the three and six months ended June 30, 2024 and 2023 were June 29, 2024 and July 1, 2023, respectively.
Recent Accounting Pronouncements	Recent Accounting Pronouncements – The Company considers the applicability and impact of all Accounting Standards Updates (“ASUs”) issued by the Financial Accounting Standards Board (“FASB”). ASUs not discussed below were assessed and determined to be either not applicable or are expected to have minimal impact on our consolidated financial position or results of operations. On December 13, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this ASU require that public business entities, on an annual basis, disclose specific categories in the rate reconciliation and provide additional information for reconciling items that are equal to or greater than 5 percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate. The amendments also require that the Company disclose the following (net of refunds received): (1) the amount of income taxes paid disaggregated by federal (national), state, and foreign taxes and (2) the amount of income taxes paid disaggregated by individual jurisdictions in which income taxes paid is equal to or greater than 5 percent of total income taxes paid. Additionally, the amendments in this update eliminate the requirement for all entities to disclose the nature and estimate of the range of the reasonably possible change in the unrecognized tax benefits balance in the next 12 months or to make a statement that an estimate of the range cannot be made, and remove the requirement to disclose the cumulative amount of each type of temporary difference when a deferred tax liability is not recognized because of the exceptions to comprehensive recognition of deferred taxes related to subsidiaries and corporate joint ventures. The guidance is effective for public business entities for annual periods beginning after December 15, 2024. Early adoption of the amendments in this update are permitted for annual financial statements that have not yet been issued. The Company is evaluating the pronouncement and does not expect adoption to have a material impact on the Company's consolidated financial position or results of operations. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280). The amendments in this ASU require incremental disclosures about the Company's reportable segments, but do not change the definition of a segment or the guidance for determining reportable segments. The incremental disclosures should include (1) significant segment expenses that are regularly provided to the chief operating decision maker ("CODM") and included within each reported measure of segment profit or loss, (2) an amount for other segment items by reportable segment and a description of its composition, (3) profit or loss and assets currently required by Topic 280 in interim periods, (4) clarification if the CODM uses more than one measure of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources and (5) the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. The guidance is effective for public entities with fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. Additionally, public entities should apply the amendments retrospectively to all prior periods presented in the financial statements, unless impractical. The Company is evaluating the pronouncement and does not expect adoption to have a material impact on the Company's consolidated financial position or results of operations.

Organization, Operations and _2

Organization, Operations and Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Schedule of Authorized Share Repurchase Programs	The Company's Board of Directors (the "Board") has authorized share repurchase programs to repurchase shares of the Company's common stock as follows: Date of Authorization Authorized Amount (millions) Authorized Amount Remaining as of June 30, 2024 (millions) May 4, 2018 $ 75.0 $ — February 22, 2019 75.0 — February 17, 2023 75.0 62.0 Totals $ 225.0 $ 62.0

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2024
Revenue from Contract with Customer [Abstract]
Summary of Disaggregation of Revenue	The Company's revenue by product line, and related approximate percentage of total sales, for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Nylon $ 103,217 23% $ 92,953 22% $ 187,606 24% $ 192,325 23% Caprolactam 81,303 18% 74,682 18% 142,779 18% 147,073 18% Ammonium Sulfate 139,674 31% 138,940 32% 224,936 28% 253,157 31% Chemical Intermediates 129,285 28% 121,365 28% 234,987 30% 235,929 28% Total $ 453,479 100% $ 427,940 100% $ 790,308 100% $ 828,484 100% The Company's revenues by geographic area, and related approximate percentage of total sales, for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 United States $ 401,859 89% $ 367,608 86% $ 686,447 87 % $ 688,534 83 % International 51,620 11% 60,332 14% 103,861 13 % 139,950 17 % Total $ 453,479 100% $ 427,940 100% $ 790,308 100 % $ 828,484 100 %
Summary of Deferred Income and Customer Advances	Below is a roll-forward of Deferred income and customer advances for the six months ended June 30, 2024: Opening balance January 1, 2024 $ 15,678 Additional cash advances 393 Less amounts recognized in revenues (14,923) Ending balance June 30, 2024 $ 1,148

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The details of the basic and diluted EPS calculations for the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Basic Net income $ 38,927 $ 32,728 $ 21,531 $ 67,682 Weighted average common shares outstanding 26,839,429 27,494,555 26,859,044 27,547,874 EPS – Basic $ 1.45 $ 1.19 $ 0.80 $ 2.46 Diluted Dilutive effect of equity awards and other stock-based holdings 310,918 618,847 392,282 800,392 Weighted average common shares outstanding 27,150,347 28,113,402 27,251,326 28,348,266 EPS – Diluted $ 1.43 $ 1.16 $ 0.79 $ 2.39
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The anti-dilutive common stock equivalents outstanding at the three and six months ended June 30, 2024 and 2023 were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Options and stock equivalents 1,057,349 503,354 1,127,661 404,009
Schedule of Dividends Declared	Dividend activity for the three and six months ended June 30, 2024 and 2023 was as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Cash dividends declared per share $ 0.16 $ 0.145 $ 0.32 $ 0.29 Aggregate dividends paid to shareholders $ 4,292 $ 3,984 $ 8,582 $ 8,004

Accounts and Other Receivable_2

Accounts and Other Receivables - Net (Tables)	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Schedule of Accounts and Other Receivables Net	June 30, December 31, Accounts receivables $ 161,279 $ 155,267 Other 9,554 10,959 Total accounts and other receivables 170,833 166,226 Less – allowance for doubtful accounts (678) (833) Total accounts and other receivables – net $ 170,155 $ 165,393

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	June 30, December 31, Raw materials $ 100,565 $ 159,240 Work in progress 45,557 54,936 Finished goods 61,130 61,891 Spares and other 32,626 30,931 239,878 306,998 Reduction to LIFO cost basis (64,051) (95,167) Total inventories $ 175,827 $ 211,831

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2024
Leases [Abstract]
Components of Lease Expense	The components of lease expense were as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 Finance lease cost: Amortization of right-of-use asset $ 264 $ 216 $ 508 $ 438 Interest on lease liabilities 39 23 77 41 Total finance lease cost 303 239 585 479 Operating lease cost 10,797 11,592 22,483 22,841 Short-term lease cost 1,141 1,511 2,334 2,537 Total lease cost $ 12,241 $ 13,342 $ 25,402 $ 25,857

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	Intangible assets subject to amortization were as follows: June 30, 2024 December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value Customer relationships $ 36,820 $ (4,713) $ 32,107 $ 36,820 $ (3,760) $ 33,060 Licenses 18,451 (6,458) 11,993 18,451 (5,996) 12,455 Trade names 1,100 (532) 568 1,100 (422) 678 Total $ 56,371 $ (11,703) $ 44,668 $ 56,371 $ (10,178) $ 46,193

Organization, Operations and _3

Organization, Operations and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended				74 Months Ended
	Jul. 26, 2024 $ / shares shares	Jun. 30, 2024 USD ($) manufacuringSite shares	Mar. 31, 2024 shares	Jun. 30, 2023 shares	Mar. 31, 2023 shares	Jun. 30, 2024 USD ($) manufacuringSite $ / shares shares	Dec. 31, 2023 USD ($)
Equity, Class of Treasury Stock [Line Items]
Number of manufacturing sites | manufacuringSite		5				5
Checks outstanding | $		$ 3.4				$ 3.4	$ 2.9
Stock repurchased during period (in shares)		141,242	260,464	410,862	333,054	6,250,181
Shares of common stock covering the tax withholding obligations (in shares)						1,004,725
Stock repurchased during period, value | $						$ 192.4
Treasury stock acquired, weighted average cost per share (in dollars per share) | $ / shares						$ 30.78
Authorized amount remaining | $		$ 62				$ 62
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Stock repurchased during period (in shares)	0
Shares of common stock covering the tax withholding obligations (in shares)	1,933
Treasury stock acquired, weighted average cost per share (in dollars per share) | $ / shares	$ 21.64

Organization, Operations and _4

Organization, Operations and Basis of Presentation - Schedule of Authorized Share Repurchase Programs (Details) $ in Millions	Jun. 30, 2024 USD ($)
Equity, Class of Treasury Stock [Line Items]
Authorized Amount	$ 225
Authorized amount remaining	62
May 2018 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized Amount	75
Authorized amount remaining	0
February 2019 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized Amount	75
Authorized amount remaining	0
February 2023 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized Amount	75
Authorized amount remaining	$ 62

Revenues - Narrative (Details)

Revenues - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024 customer country	Jun. 30, 2023
Concentration Risk [Line Items]
Number of customers | customer			400
Number of countries in which customers are located (more than) | country			45
Length of contract terms			We typically sell to customers under master service agreements, with primarily one-year terms, or by purchase orders.
10 Largest Customers | Customer Concentration Risk | Revenue from Contract with Customer
Concentration Risk [Line Items]
Concentration risk percentage	39%	40%	38%	38%
Shaw Industries Group Inc | Customer Concentration Risk | Revenue from Contract with Customer
Concentration Risk [Line Items]
Concentration risk percentage	9%	10%	9%	10%

Revenues - Disaggregation of Re

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Sales	$ 453,479	$ 427,940	$ 790,308	$ 828,484
Revenue from Contract with Customer | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	100%	100%	100%	100%
Revenue from Contract with Customer | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	100%	100%	100%	100%
United States
Disaggregation of Revenue [Line Items]
Sales	$ 401,859	$ 367,608	$ 686,447	$ 688,534
United States | Revenue from Contract with Customer | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	89%	86%	87%	83%
International
Disaggregation of Revenue [Line Items]
Sales	$ 51,620	$ 60,332	$ 103,861	$ 139,950
International | Revenue from Contract with Customer | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	11%	14%	13%	17%
Nylon
Disaggregation of Revenue [Line Items]
Sales	$ 103,217	$ 92,953	$ 187,606	$ 192,325
Nylon | Revenue from Contract with Customer | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	23%	22%	24%	23%
Caprolactam
Disaggregation of Revenue [Line Items]
Sales	$ 81,303	$ 74,682	$ 142,779	$ 147,073
Caprolactam | Revenue from Contract with Customer | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	18%	18%	18%	18%
Ammonium Sulfate
Disaggregation of Revenue [Line Items]
Sales	$ 139,674	$ 138,940	$ 224,936	$ 253,157
Ammonium Sulfate | Revenue from Contract with Customer | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	31%	32%	28%	31%
Chemical Intermediates
Disaggregation of Revenue [Line Items]
Sales	$ 129,285	$ 121,365	$ 234,987	$ 235,929
Chemical Intermediates | Revenue from Contract with Customer | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	28%	28%	30%	28%

Revenues - Summary of Deferred

Revenues - Summary of Deferred Revenue and Customer Advances (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Change in Contract with Customer, Liability [Roll Forward]
Opening balance	$ 15,678
Additional cash advances	393
Less amounts recognized in revenues	(14,923)
Ending balance	$ 1,148

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Basic
Net income	$ 38,927	$ (17,396)	$ 32,728	$ 34,954	$ 21,531	$ 67,682
Weighted average common shares outstanding (in shares)	26,839,429		27,494,555		26,859,044	27,547,874
EPS – Basic (in dollars per share)	$ 1.45		$ 1.19		$ 0.80	$ 2.46
Diluted
Dilutive effect of equity awards and other stock-based holdings (in shares)	310,918		618,847		392,282	800,392
Weighted average common shares outstanding (in shares)	27,150,347		28,113,402		27,251,326	28,348,266
EPS – Diluted (in dollars per share)	$ 1.43		$ 1.16		$ 0.79	$ 2.39

Earnings Per Share - Antidiluti

Earnings Per Share - Antidilutive Common Stock Equivalents (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Options and stock equivalents (in shares)	1,057,349	503,354	1,127,661	404,009

Earnings Per Share - Dividend A

Earnings Per Share - Dividend Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Cash dividends declared per share (in dollars per share)	$ 0.16	$ 0.145	$ 0.32	$ 0.29
Aggregate dividends paid to shareholders	$ 4,292	$ 3,984	$ 8,582	$ 8,004

Accounts and Other Receivable_3

Accounts and Other Receivables - Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Receivables [Abstract]
Accounts receivables	$ 161,279	$ 155,267
Other	9,554	10,959
Total accounts and other receivables	170,833	166,226
Less – allowance for doubtful accounts	(678)	(833)
Total accounts and other receivables – net	$ 170,155	$ 165,393

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 100,565	$ 159,240
Work in progress	45,557	54,936
Finished goods	61,130	61,891
Spares and other	32,626	30,931
Inventory gross	239,878	306,998
Reduction to LIFO cost basis	(64,051)	(95,167)
Total inventories	$ 175,827	211,831
Percentage of FIFO inventory	11%
Excess of replacement or current costs over stated LIFO value	$ 65,700	$ 65,300

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Finance Lease Cost
Amortization of right-of-use asset	$ 264	$ 216	$ 508	$ 438
Interest on lease liabilities	39	23	77	41
Total finance lease cost	303	239	585	479
Operating lease cost	10,797	11,592	22,483	22,841
Short-term lease cost	1,141	1,511	2,334	2,537
Total lease cost	$ 12,241	$ 13,342	$ 25,402	$ 25,857

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Jun. 30, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, term of contract	6 years
Operating Lease
Lessee, Lease, Description [Line Items]
Including lease not yet commenced	$ 99.2

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 800	$ 800	$ 1,500	$ 1,500
Customer relationships | U.S. Amines, Ltd. | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	15 years		15 years
Customer relationships | U.S. Amines, Ltd. | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years		20 years
Trade names | U.S. Amines, Ltd.
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years		5 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 56,371	$ 56,371
Accumulated Amortization	(11,703)	(10,178)
Net Book Value	44,668	46,193
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,820	36,820
Accumulated Amortization	(4,713)	(3,760)
Net Book Value	32,107	33,060
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	18,451	18,451
Accumulated Amortization	(6,458)	(5,996)
Net Book Value	11,993	12,455
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,100	1,100
Accumulated Amortization	(532)	(422)
Net Book Value	$ 568	$ 678

Commitments and Contingencies (

Commitments and Contingencies (Details)	6 Months Ended
	Jun. 30, 2024 location
Commitments and Contingencies Disclosure [Abstract]
Number of manufacturing locations	3

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ 13,145	$ 10,555	$ 7,124	$ 19,829
Effective income tax rate	25.20%	24.40%	24.90%	22.70%
Discrete tax adjustment relating to changes in state tax legislation				0.90%

Fair Value Measurements (Detail

Fair Value Measurements (Details)	Oct. 28, 2023 USD ($)
Fair Value Disclosures [Abstract]
Impairment for goodwill	$ 0

Supplier Finance Program (Detai

Supplier Finance Program (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Period of termination	30 days
Supplier finance program	$ 14	$ 17
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]	Accounts payable	Accounts payable

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares		3 Months Ended		6 Months Ended
	Aug. 02, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.16	$ 0.145	$ 0.32	$ 0.29
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.16