Quarterly report pursuant to Section 13 or 15(d)

Accounting for Uncertainty in Income Taxes - Additional Information (Detail)

v3.4.0.3
Accounting for Uncertainty in Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Income Tax Disclosure [Abstract]    
Liability for unrecognized tax $ 6.0 $ 8.2
Unrecognized tax favorable impact on effective tax rate   3.6
Accrued interest and penalties applied to uncertain tax positions 1.9 $ 3.4
Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals $ 1.4