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Commitments and Contingencies (Indemnities) - Additional Information (Detail) - Indemnification Agreement [Member]
$ in Millions
Dec. 31, 2016
USD ($)
Loss Contingencies [Line Items]  
Pre-acquisition non-U.S.tax obligations and indemnification asset amount recorded $ 11.4
Pre-acquisition non-U.S.tax obligations and indemnification liability amount recorded $ 11.4