Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Contract Assets and Liabilities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Contract assets	$ 70.8	$ 48.4
Contract liabilities	53.7	58.1
Net contract assets (liabilities)	17.1	$ (9.7)
$ Change
Contract assets	22.4
Contract liabilities	(4.4)
Net contract assets (liabilities)	$ 26.8
% Change
Contract assets	46.30%
Contract liabilities	(7.60%)
Net contract assets (liabilities)	(276.30%)
Percent of contract liabilities		90.00%
Impairment losses on contract assets		$ 1.1