Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2018	Dec. 31, 2019
Income Tax Contingency [Line Items]
Unrecognized tax benefits would impact effective tax rate if recognized	$ 16.4
Unrecognized tax benefit	16.4		$ 16.4
Income tax interest expense	0.2
Uncertain tax positions	$ 0.0
Income tax examination, description	The Company and its U.S. subsidiaries remain open to examination by the IRS for years 2016 onwards under the statute of limitations. The Company’s subsidiaries in foreign tax jurisdictions are open to examination including Germany (2015 onwards), Switzerland (2015 onwards), Spain (2016 onwards), France (2017 onwards) and the United Kingdom (2018 onwards).
Increase to income tax expense	$ 0.2
Italian Tax Authorities [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefit	$ 3.1
Tax Cuts and Jobs Act [Member]
Income Tax Contingency [Line Items]
Uncertain tax positions		$ 10.8
Non-US [Member] | Earliest Tax Year [Member]
Income Tax Contingency [Line Items]
Open tax year	2011
Non-US [Member] | Latest Tax Year [Member]
Income Tax Contingency [Line Items]
Open tax year	2014