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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018
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Commitments and Contingencies [Line Items] |  |
Provision for transition tax | $ 37.2 | $ 37.2
Other Long-term Liabilities |  |
Commitments and Contingencies [Line Items] |  |
Transition tax | $ 28.9 | $ 28.9

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- Definition Commitments and contingencies. + References No definition available. + Details
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- Definition One-time transition tax future minimum payments due related to Tax Cuts and Jobs Act enacted in 2017. + References No definition available. + Details
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- Definition Tax cuts and jobs act of 2017 provision for transition tax. + References No definition available. + Details
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- Details
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