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v3.20.2

Business Segment Information - Segment Operating Performance (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |
Net sales | $ 415.0 | $ 528.6 | $ 874.3 | $ 1,008.2
Cost of sales | 311.0 | 405.4 | 670.6 | 763.2
Gross margin | 104.0 | 123.2 | 203.7 | 245.0
Operating income | 39.3 | 65.9 | 110.3 | 126.3
Securities earnings | 1.0 | 3.3 | 2.6 | 6.4
Insurance recoveries |  | 4.7 | 1.6 | 5.0
Changes in market value of Valhi common stock held by subsidiaries | (0.5) | 1.9 | (2.9) | 3.0
Other components of net periodic pension expense | (5.0) | (4.1) | (9.7) | (8.2)
Litigation settlement expense, net |  | (19.6) |  | (19.6)
General expenses, net | (9.0) | (10.8) | (17.1) | (18.7)
Interest expense | (8.8) | (10.1) | (18.5) | (20.4)
Income before income taxes | 17.0 | 31.2 | 66.3 | 73.8
Chemicals |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 386.0 | 484.5 | 807.0 | 921.0
Cost of sales | 291.1 | 375.4 | 624.5 | 703.1
Gross margin | 94.9 | 109.1 | 182.5 | 217.9
Operating income | 35.9 | 50.5 | 82.7 | 103.3
Component Products |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 23.8 | 33.7 | 56.1 | 64.9
Cost of sales | 16.4 | 22.8 | 38.3 | 44.3
Gross margin | 7.4 | 10.9 | 17.8 | 20.6
Operating income | 2.4 | 5.6 | 7.4 | 10.0
Real Estate Management And Development |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 5.2 | 10.4 | 11.2 | 22.3
Cost of sales | 3.5 | 7.2 | 7.8 | 15.8
Gross margin | 1.7 | 3.2 | 3.4 | 6.5
Operating income | $ 1.0 | $ 9.8 | $ 20.2 | $ 13.0

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