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Long-Term Debt - Senior Notes - Additional Information (Detail) € in Millions, $ in Millions			12 Months Ended
	Sep. 13, 2017 USD ($)	Sep. 13, 2017 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 13, 2017 EUR (€)
Debt Instrument [Line Items]
Aggregate principal amount outstanding			$ 424.1	$ 448.8
Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs			$ 2.4	$ 3.5
Minimum amount of debt default for using customary default provisions	$ 50.0
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025
Debt Instrument [Line Items]
Debt instrument interest rate	3.75%	3.75%	3.75%	3.75%	3.75%
Debt instrument maturity date	Sep. 15, 2025
Aggregate principal amount outstanding			$ 424.1	$ 448.8
Debt instrument principal amount	$ 477.6	$ 477.6			€ 400
Debt instrument, interest payment terms			bear interest at 3.75% per annum, payable semi-annually on March 15 and September 15 of each year, payments began on March 15, 2018;
Debt instrument, frequency of periodic payment of interest			semi-annually
Debt instrument, date of first semi-annual interest payment		--03-15
Debt instrument, date of second semi-annual interest payment		--09-15
Debt Instrument, date of first required semi-annual payment		Mar. 15, 2018
Debt instrument, redemption, description			have a maturity date of September 15, 2025. We may redeem the Senior Notes at 100.938% of the principal amount, declining to 100% on or after September 15, 2023. If we experience certain specified change of control events, we would be required to make an offer to purchase the Senior Notes at 101% of the principal amount. We would also be required to make an offer to purchase a specified portion of the Senior Notes at par value in the event that we generate a certain amount of net proceeds from the sale of assets outside the ordinary course of business, and such net proceeds are not otherwise used for specified purposes within a specified time period;
Debt instrument redemption price percent if experience certain specified change of control events	101.00%
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025 | Collateral Pledged | Direct Domestic Subsidiary of KII and Guarantors
Debt Instrument [Line Items]
Parent company ownership interest	100.00%	100.00%			100.00%
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025 | Collateral Pledged | Non US Subsidiary Directly Owned by KII or any Guarantor
Debt Instrument [Line Items]
Parent company ownership interest	65.00%	65.00%			65.00%
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025 | Collateral Pledged | Non US Subsidiary Directly Owned by KII or any Guarantor | Non-voting Common Stock
Debt Instrument [Line Items]
Parent company ownership interest	100.00%	100.00%			100.00%
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025 | On or After September 15, 2020
Debt Instrument [Line Items]
Debt instrument, redemption price percentage	100.938%
Kronos International, Inc | 3.75% Senior Secured Notes due September 15, 2025 | On or After September 15, 2023
Debt Instrument [Line Items]
Debt instrument, redemption price percentage	100.00%

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