Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Income Tax Examination [Line Items]
Unrecognized tax benefits	$ 10.5	$ 10.5
Accrued interest related to uncertain tax positions	$ 2.3	$ 2.3
U.S. Federal [Member]
Income Tax Examination [Line Items]
Open tax year	2008
U.S. State and Local [Member]
Income Tax Examination [Line Items]
Open tax year	2009
Non-U.S [Member]
Income Tax Examination [Line Items]
Open tax year	2012