Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Schedule of cash dividends declared per common share

Cash dividends declared and paid per common share for the three and nine months ended September 30, 2023 and 2022 were as follows: 

	Three months ended September 30,				Nine months ended September 30,
	2023		2022		2023		2022
Cash dividends declared and paid per common share	$	0.65	$	0.64	$	1.95	$	1.92

Schedule of reconciliation of weighted average number of shares

A reconciliation of these amounts is as follows (in millions):

	Three months ended September 30,		Nine months ended September 30,
	2023	2022	2023	2022
Weighted average number of common shares outstanding	56.6	58.8	56.8	59.4
Director Plan and deferred stock units	0.2	0.2	0.2	0.2
ESOP	0.2	0.2	0.2	0.2
Common shares outstanding—basic	57.0	59.2	57.2	59.8
Dilutive effect of restricted stock units	0.4	0.4	0.4	0.4
Dilutive effect of stock option awards	0.4	0.4	0.3	0.4
Common and potential common shares outstanding—diluted	57.8	60.0	57.9	60.6

Schedule of changes in accumulated other comprehensive income (loss) balances

Changes in the accumulated other comprehensive loss balance were as follows (in millions):

	Foreign Currency Translation		Cash Flow Hedging Derivatives		Retirement Plan Activity		Accumulated Other Comprehensive Loss
Balance as of December 31, 2022	$	(94.8)	$	10.5	$	(3.2)	$	(87.5)
Reclassification to the statement of income	—		(25.2)		0.2		(25.0)
Change in fair value	3.5		28.7		—		32.2
Balance as of September 30, 2023	$	(91.3)	$	14.0	$	(3.0)	$	(80.3)