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

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- 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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