Comprehensive Income (Tables)

3 Months Ended

Mar. 30, 2025

Comprehensive Income [Abstract]

Reclassifications Out of Accumulated Other Comprehensive Loss

The following table summarizes the amounts reclassified out of accumulated other comprehensive loss attributable to the Company:

	Three Months Ended
(in millions of dollars)	Mar. 30, 2025		Mar. 31, 2024
Amortization of pension items:
Pre-tax amount	$	0.1	$	0.3
Tax		—		(0.1	)
Net of tax	$	0.1	$	0.2

Accumulated Other Comprehensive Loss

The major components of accumulated other comprehensive loss, net of related tax, attributable to MTI are as follows:

(in millions of dollars)	Foreign Currency Translation Adjustment			Unrecognized Pension Costs		Net Gain (Loss) on Derivative Instruments			Total
Balance as of December 31, 2024	$	(399.6	)	$	1.9	$	10.6		$	(387.1	)
Other comprehensive income (loss) before reclassifications		10.5			—		—			10.5
Amounts reclassified from AOCI		—			0.1		(0.3	)		(0.2	)
Net current period other comprehensive income (loss)		10.5			0.1		(0.3	)		10.3
Balance as of March 30, 2025	$	(389.1	)	$	2.0	$	10.3		$	(376.8	)