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v3.21.2

Business Segment Information - Segment Operating Performance (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 578.9 | $ 458.6 | $ 1,613.2 | $ 1,332.9
Cost of sales | 426.2 | 368.9 | 1,226.6 | 1,039.5
Gross margin | 152.7 | 89.7 | 386.6 | 293.4
Operating income | 81.2 | 28.9 | 188.1 | 139.2
Securities earnings | 0.9 | 0.9 | 2.9 | 3.5
Insurance recoveries |  |  |  | 1.6
Gain on land and related sales | 10.4 |  | 16.0 | 0.5
Changes in market value of Valhi common stock held by subsidiaries | (0.2) | 0.7 | 2.0 | (2.2)
Other components of net periodic pension and OPEB expense | (4.3) | (5.2) | (13.2) | (14.9)
General expenses, net | (8.7) | (8.4) | (26.1) | (26.0)
Interest expense | (7.9) | (8.9) | (25.2) | (27.4)
Income before income taxes | 71.4 | 8.0 | 144.5 | 74.3
Chemicals |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 499.8 | 416.9 | 1,443.4 | 1,223.9
Cost of sales | 377.1 | 337.3 | 1,116.7 | 961.8
Gross margin | 122.7 | 79.6 | 326.7 | 262.1
Operating income | 60.3 | 21.6 | 145.4 | 104.3
Component Products |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 34.5 | 28.4 | 106.7 | 84.5
Cost of sales | 23.6 | 21.1 | 73.4 | 59.4
Gross margin | 10.9 | 7.3 | 33.3 | 25.1
Operating income | 5.1 | 2.1 | 16.7 | 9.5
Real Estate Management And Development |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 44.6 | 13.3 | 63.1 | 24.5
Cost of sales | 25.5 | 10.5 | 36.5 | 18.3
Gross margin | 19.1 | 2.8 | 26.6 | 6.2
Operating income | $ 15.8 | $ 5.2 | $ 26.0 | $ 25.4

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