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v3.23.1

Business and geographic segments - Segment Operating Performance (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |
Net sales | $ 492.7 | $ 629.0
Cost of sales | 438.6 | 458.3
Gross margin | 54.1 | 170.7
Operating income (loss) | 2.5 | 100.7
Interest income and other | 4.9 | 0.9
Insurance recoveries | 1.7 |
Changes in market value of Valhi common stock held by subsidiaries | (1.1) | 0.1
Other components of net periodic pension and OPEB expense | (1.2) | (3.3)
General expenses, net | (7.9) | (8.2)
Interest expense | (7.0) | (6.9)
Income from continuing operations before income taxes | (9.8) | 83.3
Depreciation and amortization | 14.3 | 14.8
Capital expenditures | 16.7 | 16.2
Chemicals |  |
Segment Reporting Information [Line Items] |  |
Net sales | 426.3 | 562.9
Cost of sales | 395.8 | 413.9
Gross margin | 30.5 | 149.0
Operating income (loss) | (15.1) | 86.4
Insurance recoveries | 1.7 |
Component Products |  |
Segment Reporting Information [Line Items] |  |
Net sales | 41.2 | 42.1
Cost of sales | 28.5 | 30.0
Gross margin | 12.7 | 12.1
Operating income (loss) | 7.0 | 6.3
Real Estate Management And Development |  |
Segment Reporting Information [Line Items] |  |
Net sales | 25.2 | 24.0
Cost of sales | 14.3 | 14.4
Gross margin | 10.9 | 9.6
Operating income (loss) | $ 10.6 | $ 8.0

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