Restructuring, Asset Impairment, and Transition Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring And Related Activities [Abstract]

Reconciliation of Accrued Restructuring Costs

The following table is a reconciliation of the accrued restructuring costs between January 1, 2019 and December 31, 2021.

	2017 Altra Plan			2019 Altra Plan			Total All Plans
Balance at January 1, 2019	$	1.9		$	—		$	1.9
Restructuring expense incurred		5.7			8.4			14.1
Cash payments		(6.1	)		(5.8	)		(11.9	)
Balance at December 31, 2019		1.5			2.6			4.1
Restructuring expense incurred		0.5			6.9			7.4
Cash payments		(1.5	)		(7.7	)		(9.2	)
Balance at December 31, 2020		0.5			1.8			2.3
Restructuring expense incurred		—			3.0			3.0
Cash payments		(0.5	)		(4.3	)		(4.8	)
Balance at December 31, 2021	$	—		$	0.5		$	0.5

Reconciliation of Restructuring Expense by Segment

The following table is a reconciliation of restructuring expense by segment for the year ending December 31, 2021.

	2017 Altra Plan		2019 Altra Plan		Total All Plans
Power Transmission Technologies	$	—	$	1.8	$	1.8
Automation & Specialty		—		1.2		1.2
Expense for the year ending December 31, 2021	$	—	$	3.0	$	3.0

The following table is a reconciliation of restructuring expense by segment for the year ending December 31, 2020.

	2017 Altra Plan		2019 Altra Plan		Total All Plans
Power Transmission Technologies	$	0.5	$	4.2	$	4.7
Automation & Specialty		—		2.7		2.7
Expense for the year ending December 31, 2020	$	0.5	$	6.9	$	7.4

The following table is a reconciliation of restructuring expense by segment for the year ending December 31, 2019.

	2017 Altra Plan		2019 Altra Plan		Total All Plans
Power Transmission Technologies	$	5.7	$	0.8	$	6.5
Automation & Specialty		—		7.6		7.6
Expense for the year ending December 31, 2019	$	5.7	$	8.4	$	14.1