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Financing Arrangements - Additional Information (Detail) - USD ($) | Sep. 30, 2017 | Dec. 31, 2016
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Debt Disclosure [Abstract] |  |
Number of debt financing arrangements in place | 0 |
Number of debt financing arrangements in place other than second lien notes |  | 0

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- References No definition available. + Details
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- Definition Number of debt financing arrangements. + References No definition available. + Details
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- Definition Number of debt financing arrangements other than second lien notes. + References No definition available. + Details
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Balance Type: | na
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