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v3.19.3.a.u2

Segment Reporting - Operating Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 444,990 |  | $ 451,582 | $ 473,003 | $ 489,170 | $ 466,659 |  | $ 507,997 |  | $ 519,866 |  | $ 499,335 |  | $ 1,858,745 | [1] | $ 1,993,857 | [1] | $ 1,925,007 | [1]
Operating income |  | 28,491 |  | $ 27,966 | $ 41,065 | $ 29,738 | 35,451 | [2] | $ 27,145 | [2] | $ 45,386 | [2] | $ 41,283 | [2] | 127,260 | [3] | 149,265 | [2],[3] | 154,840 | [3]
Assets |  | 1,579,367 | [4] |  |  |  | 1,514,614 | [4] |  |  |  |  |  |  | 1,579,367 | [4] | 1,514,614 | [4] | 1,502,892 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 105,572 |  | 86,647 |  | 78,613 |
Depreciation and amortization expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 78,701 |  | 81,115 |  | 79,022 |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,858,745 |  | 1,993,857 |  | 1,925,007 |
Operating income | [5] |  |  |  |  |  |  |  |  |  |  |  |  |  | 208,762 |  | 211,552 |  | 221,422 |
Assets |  | 1,331,929 |  |  |  |  | 1,285,200 |  |  |  |  |  |  |  | 1,331,929 |  | 1,285,200 |  | 1,311,932 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,354 |  | 84,398 |  | 75,780 |
Depreciation and amortization expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 76,056 |  | 78,917 |  | 77,119 |
Surfactants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,272,723 |  | 1,385,932 |  | 1,297,555 |
Surfactants [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,272,723 |  | 1,385,932 |  | 1,297,555 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,780 |  | 133,518 | [5] | 125,712 | [5]
Assets |  | 907,032 |  |  |  |  | 850,553 |  |  |  |  |  |  |  | 907,032 |  | 850,553 |  | 881,415 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,725 |  | 51,543 |  | 50,400 |
Depreciation and amortization expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,422 |  | 50,514 |  | 49,102 |
Polymers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 512,347 |  | 527,420 |  | 546,634 |
Polymers [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 512,347 |  | 527,420 |  | 546,634 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,567 |  | 66,373 | [5] | 85,745 | [5]
Assets |  | 338,179 |  |  |  |  | 351,690 |  |  |  |  |  |  |  | 338,179 |  | 351,690 |  | 355,065 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29,188 |  | 26,663 |  | 21,146 |
Depreciation and amortization expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,151 |  | 23,253 |  | 22,998 |
Specialty Products [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 73,675 |  | 80,505 |  | 80,818 |
Specialty Products [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 73,675 |  | 80,505 |  | 80,818 |
Operating income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,415 |  | 11,661 | [5] | 9,965 | [5]
Assets |  | $ 86,718 |  |  |  |  | $ 82,957 |  |  |  |  |  |  |  | 86,718 |  | 82,957 |  | 75,452 |
Capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,441 |  | 6,192 |  | 4,234 |
Depreciation and amortization expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,483 |  | $ 5,150 |  | $ 5,019 |
[1] | Net sales are attributed to countries based on the location of the Company facility making the sales.
[2] | The 2018 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO
[3] | The 2018 and 2017 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO.
[4] | The 2018 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO.
[5] | The 2018 and 2017 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO

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