Shareholders' equity (Tables)

6 Months Ended

Jun. 30, 2026

Stockholders' Equity Note [Abstract]

Accumulated other comprehensive loss – Changes in the components of accumulated other comprehensive loss for the six months ended June 30, 2026 and June 30, 2025 were as follows:


(in millions)	Postretirement benefit plans		Currency translation adjustment		Accumulated other comprehensive loss
Balance, December 31, 2025	$	(6.4)	$	(12.1)	$	(18.5)
Other comprehensive loss before reclassifications	—		(1.0)		(1.0)
Amounts reclassified from accumulated other comprehensive loss	(0.4)		—		(0.4)
Net current-period other comprehensive loss	(0.4)		(1.0)		(1.4)
Balance, June 30, 2026	$	(6.8)	$	(13.1)	$	(19.9)


(in millions)	Postretirement benefit plans		Currency translation adjustment		Accumulated other comprehensive loss
Balance, December 31, 2024	$	(16.6)	$	(13.3)	$	(29.9)
Other comprehensive income before reclassifications	—		1.1		1.1
Amounts reclassified from accumulated other comprehensive loss	(0.1)		—		(0.1)
Net current-period other comprehensive (loss) income	(0.1)		1.1		1.0
Balance, June 30, 2025	$	(16.7)	$	(12.2)	$	(28.9)

Reclassification adjustments

Reclassification adjustments – Information regarding amounts reclassified from accumulated other comprehensive loss to net income was as follows:


Accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss								Affected line item in consolidated statements of comprehensive income
	Quarter Ended June 30,				Six Months Ended June 30,
(in millions)	2026		2025		2026		2025
Amortization of postretirement benefit plan items:
Prior service credit	$	0.4	$	0.4	$	0.7	$	0.7	Other income, net
Net actuarial loss	—		(0.2)		(0.1)		(0.4)		Other income, net
Total amortization	0.4		0.2		0.6		0.3		Other income, net
Tax expense	(0.2)		(0.1)		(0.2)		(0.2)		Income tax provision
Amortization of postretirement benefit plan items, net of tax	0.2		0.1		0.4		0.1		Net income
Total reclassifications, net of tax	$	0.2	$	0.1	$	0.4	$	0.1