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Income Taxes - Reconciliation of Provision for Income Taxes (Detail)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
(Benefit) provision computed at statutory rate 35.00% 35.00% 35.00%
State income tax, net of Federal tax benefit (1.00%) 1.10% (5.90%)
Foreign rate differential (16.00%) 13.90% (176.50%)
Change in valuation allowance (1.00%) (8.30%) 17.60%
US impact of Enterprise acquisition and integration (14.10%) (26.70%) 41.20%
Return to provision and other true ups (3.70%) 0.00% (17.60%)
Tax credits 9.50% 6.10% (17.60%)
Foreign earnings subject to US taxation (6.60%) (3.90%) 17.60%
Effect of rate changes on deferred taxes (1.60%) (3.30%) 17.60%
Other (6.70%) (1.70%) 0.00%
(Benefit) provision for income taxes (6.20%) 12.20% (88.60%)