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Related Party Transactions - Summary of Current Receivables from and Payables to Affiliates (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Related Party Transaction [Line Items] |  |
Current receivable from affiliate | $ 3.5 | $ 2.5
Current payables to affiliates | 14.7 | 19.5
Valhi | Income Tax Receivable |  |
Related Party Transaction [Line Items] |  |
Current receivable from affiliate | 0.7 |
Valhi | Income Tax Payable |  |
Related Party Transaction [Line Items] |  |
Current payables to affiliates |  | 0.1
Other Affiliates | Other Receivable |  |
Related Party Transaction [Line Items] |  |
Current receivable from affiliate | 2.8 | 2.5
Louisiana Pigment Company, L.P. | Trade Items |  |
Related Party Transaction [Line Items] |  |
Current payables to affiliates | $ 14.7 | $ 19.4

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