Restructuring, Asset Impairment, and Transition Expenses - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 5.2	$ 3.0	$ 7.4
Workforce Reductions [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs		2.0	5.0
Consolidation and Relocation Costs [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs		0.8	0.6
Other Restructuring Expense [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs		0.2	1.3
2017 Altra Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs	0.0	0.0	0.5
2019 Altra Plan [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs	5.2	$ 3.0	$ 6.9
Expected period to incur restructuring expense				2 years
2019 Altra Plan [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected additional restructuring cost remaining				$ 1.0
2019 Altra Plan [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected additional restructuring cost remaining				$ 2.0
2019 Altra Plan [Member] | Severance [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring costs	$ 5.2