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Related Party Transactions - Receivables from and Payables to Affiliates (Detail) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Current receivables from affiliates: |  |
Receivable from affiliates | $ 4.5 | $ 7.3
Current payables to affiliates: |  |
Payable to affiliates | 27.6 | 20.4
Contran |  |
Current receivables from affiliates: |  |
Contran trade items | 1.7 | 0.4
Current payables to affiliates: |  |
Contran income taxes | 8.3 | 4.0
Noncurrent payable to affiliates: |  |
Contran - income taxes | 50.4 | 56.3
Louisiana Pigment Company |  |
Current receivables from affiliates: |  |
Receivable from affiliates |  | 4.7
Current payables to affiliates: |  |
Payable to affiliates | 19.3 | 16.4
VALHI, INC. | Contran | Credit Facility |  |
Noncurrent payable to affiliates: |  |
Payables to affiliate included in long-term debt | 270.7 | 313.0
Other |  |
Current receivables from affiliates: |  |
Receivable from affiliates | $ 2.8 | $ 2.2

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