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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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