Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Period for credit risk identified		30 days
Revenue from contracts criteria over time		multiple quarters
Sales revenues totaling	$ 8.0	$ 19.0
Total Future minimum flease payments expected to be received	4.1	4.1
Future minimum flease payments expected to be received in 2024	0.9	0.9
Future minimum flease payments expected to be received in 2025	0.7	0.7
Future minimum flease payments expected to be received in 2026	0.2	0.2
Lease revenue	147.2	424.6
Operating lease revenue	146.7	422.5
Finance lease revenue	0.5	2.1
Finance lease revenue, sales revenue	0.4	1.8
Finance lease revenue, interest income	0.1	$ 0.3
Period for warranties for rental equipment		90 days
Period for warranties for equipment manufactured		1 year
Deferred Income [Member]
Disaggregation Of Revenue [Line Items]
Customer contract liability	34.2	$ 34.2	$ 27.4
Accounts Receivable [Member]
Disaggregation Of Revenue [Line Items]
Unbilled contract assets	$ 1.2	$ 1.2	$ 0.6