Comprehensive Income (Tables)

6 Months Ended

Jun. 29, 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					Six Months Ended
(in millions of dollars)	Jun. 29, 2025		Jun. 30, 2024			Jun. 29, 2025		Jun. 30, 2024
Amortization of pension items:
Pre-tax amount	$	0.1	$	0.3		$	0.2	$	0.6
Tax		—		(0.1	)		—		(0.1	)
Net of tax	$	0.1	$	0.2		$	0.2	$	0.5

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		40.2			0.2		(0.2	)		40.2
Amounts reclassified from AOCI		—			—		—			—
Net current period other comprehensive income (loss)		40.2			0.2		(0.2	)		40.2
Balance as of June 29, 2025	$	(359.4	)	$	2.1	$	10.4		$	(346.9	)