Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
Accounting for Uncertainty in Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
Liability for unrecognized tax $ 6.0 $ 7.8
Unrecognized tax favorable impact on effective tax rate   3.6
Accrued interest and penalties applied to uncertain tax positions $ 1.8 $ 3.4