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Segment Reporting - Segment Data and Reconciliations of Segment Data to Consolidated Financial Statements and Non-GAAP Measures (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | [1] | $ 2,180,274 | $ 2,325,768 | $ 2,773,270
Cost of Sales |  | 1,908,060 | 2,048,170 | 2,346,201
Operating Expenses |  | 201,734 | 204,979 | 218,447
Operating income |  | 70,480 | 58,613 | 207,336
Assets |  | 2,304,648 | 2,363,354 | 2,433,172
Consolidated Capital Expenditures |  | 122,776 | 260,335 | 301,553
Depreciation and Amortization |  | 112,197 | 105,338 | 94,650
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 2,180,274 | 2,325,768 | 2,773,270
Cost of Sales | [2] | 1,908,143 | 2,050,495 | 2,347,404
Operating Expenses | [3] | 124,982 | 130,628 | 150,328
Operating income |  | 147,149 | 144,645 | 275,538
Assets |  | 2,172,779 | 2,193,849 | 2,241,161
Segment Capital Expenditures |  | 120,585 | 260,622 | 300,047
Depreciation and Amortization |  | 110,394 | 102,592 | 92,468
Segment Reconciling Items [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Unallocated Corporate Expenses | [4] | (76,669) | (86,032) | (68,202)
Unallocated Assets | [5] | 131,869 | 169,505 | 192,011
Unallocated Capital Expenditures | [6] | 2,191 | (287) | 1,506
Unallocated Depreciation and Amortization | [7] | 1,803 | 2,746 | 2,182
Surfactants [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 1,532,115 | 1,602,819 | 1,882,745
Surfactants [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 1,532,115 | 1,602,819 | 1,882,745
Cost of Sales | [2] | 1,352,022 | 1,431,462 | 1,605,983
Operating Expenses | [3] | 94,475 | 98,958 | 114,016
Operating income |  | 85,618 | 72,399 | 162,746
Assets |  | 1,578,689 | 1,586,148 | 1,579,242
Segment Capital Expenditures |  | 90,766 | 231,341 | 259,442
Depreciation and Amortization |  | 72,028 | 64,377 | 55,262
Polymers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 584,905 | 642,471 | 789,080
Polymers [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 584,905 | 642,471 | 789,080
Cost of Sales | [2] | 516,902 | 553,590 | 674,293
Operating Expenses | [3] | 27,380 | 28,111 | 31,890
Operating income |  | 40,623 | 60,770 | 82,897
Assets |  | 523,192 | 537,193 | 565,726
Segment Capital Expenditures |  | 25,827 | 19,971 | 35,679
Depreciation and Amortization |  | 32,417 | 32,426 | 31,399
Specialty Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 63,254 | 80,478 | 101,445
Specialty Products [Member] | Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales |  | 63,254 | 80,478 | 101,445
Cost of Sales | [2] | 39,219 | 65,443 | 67,128
Operating Expenses | [3] | 3,127 | 3,559 | 4,422
Operating income |  | 20,908 | 11,476 | 29,895
Assets |  | 70,898 | 70,508 | 96,193
Segment Capital Expenditures |  | 3,992 | 9,310 | 4,926
Depreciation and Amortization |  | $ 5,949 | $ 5,789 | $ 5,807
[1] | Net sales are attributed to countries based on the location of the Company legal entity making the sale.
[2] | Cost of sales is comprised of raw material costs (including freight and outbound shipping and handling expenses to deliver the raw materials), manufacturing plant labor expenses and various manufacturing overhead expenses, such as utilities, maintenance, operating supplies, amortization and manufacturing asset depreciation expenses, warehouse and rail car expenses that can be allocated to reportable segments. For more details about items included in Cost of sales line item on the Consolidated Statements of Income, see Note 1, Summary of Significant Accounting Policies, of the notes to the Company’s consolidated financial statements included in Item 8 of this Form 10-K).
[3] | Operating expenses allocated to reportable segments are comprised of selling, administrative and research and development expenses. CODM uses operating expenses balances in its aggregate to analyze the performance of each reportable segment. For more details about items included in Operating expenses line items on the Consolidated Statements of Income, see Note 1, Summary of Significant Accounting Policies, of the notes to the Company’s consolidated financial statements included in Item 8 of this Form 10-K).
[4] | Unallocated corporate expenses are primarily comprised of corporate administrative expenses (e.g., corporate finance, legal, human resources, information technology and environmental remediation expenses), deferred compensation and business restructuring and assets impairment expenses that are not included in segment operating income and not used to evaluate segment performance. For more details about items included in unallocated corporate expenses, see Note 22, Business Restructuring and Assets Impairment, of the notes to the Company’s consolidated financial statements included in Item 8 of this Form 10-K).
[5] | Unallocated assets primarily include assets in the Company’s Northfield, Illinois location.
[6] | Unallocated capital expenditures primarily include capital expenditures related to Company’s Northfield, Illinois location.
[7] | Unallocated depreciation and amortization primarily includes depreciation related to the Company’s Northfield, Illinois location.

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