Consolidated Statements Of Changes in Shareholders’ Equity - USD ($) $ in Millions	Common Stock Including Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests	Total
Balance at Dec. 31, 2018	$ 428.8	$ 678.1	$ (240.3)	$ 3.9	$ 870.5
Net income		144.5		0.4	144.9
Other comprehensive (loss) income			(10.3)	0.1	(10.2)
Stock issued	18.5			0.8	19.3
Stock purchased	(19.2)			(0.3)	(19.5)
Dividends declared	21.4	(128.6)			(107.2)
Balance at Dec. 31, 2019	449.5	694.0	(250.6)	4.9	897.8
Net income		121.8		0.3	122.1
Other comprehensive (loss) income			3.9	0.2	4.1
Stock issued	19.1				19.1
Stock purchased	(16.5)			(0.9)	(17.4)
Dividends declared		(90.7)			(90.7)
Balance at Dec. 31, 2020	452.1	725.1	(246.7)	4.5	935.0
Net income		262.4		0.6	263.0
Other comprehensive (loss) income			66.2		66.2
Stock issued	20.5			1.1	21.6
Stock purchased	(15.9)			(0.8)	(16.7)
Dividends declared		(137.2)			(137.2)
Balance at Dec. 31, 2021	$ 456.7	$ 850.3	$ (180.5)	$ 5.4	$ 1,131.9