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Fair Value Measurements - Assets and Liabilities Recorded at Fair Value (Parenthetical) (Detail) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Other Current Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow swaps designated as hedges | $ 0.2 |
Other Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow swaps designated as hedges | 2.7 | $ 2.8
Other Accrued Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow swaps designated as hedges | 2.6 | 3.7
Cash flow swaps not designated as hedges | 0.2 | 0.3
Other Long-Term Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Cash flow swaps designated as hedges | $ 1.6 | $ 2.4

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