Earnings per Share and Stock Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2020

Earnings per Share and Stock Repurchase Program

Summary of reconciliation of the calculation of earnings per share

	Year Ended December 31,
	2020					2019					2018
				Per					Per					Per
	Net			Share		Net			Share		Net			Share
	Income		Shares	Amount		Income		Shares	Amount		Income		Shares	Amount
	(Amounts in millions, except per share information)
Basic EPS	$	114.3	33.9	$	3.37	$	131.5	34.1	$	3.86	$	128.0	34.3	$	3.73
Dilutive securities, principally common stock options		—	0.1		(0.01)		—	0.1		(0.01)		—	—		—
Diluted EPS	$	114.3	34.0	$	3.36	$	131.5	34.2	$	3.85	$	128.0	34.3	$	3.73

Summary of the cost and number of Class A common stock repurchased

	Year Ended December 31,
	2020			2019
	Number of shares	Cost of shares		Number of shares	Cost of shares
	repurchased	repurchased		repurchased	repurchased
	(amounts in millions, except share amount)
Stock repurchase programs:
$100 million	—		—	146,304		11.8
$150 million	331,531		28.9	81,316		7.7
Total	331,531	$	28.9	227,620	$	19.5