Stock Repurchase Program (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Summary of Stock Repurchase Activity and Remaining Authorized Repurchase Amounts

The table below summarizes stock repurchase activity under the stock repurchase programs during the three and nine months ended September 30, 2020 and 2019, respectively:

	Three Months Ended				Nine Months Ended
(millions, except for share and per share data) (unaudited)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Total number of shares repurchased		—		536,743		393,975		958,459
Average price paid per share	$	—	$	34.83	$	38.78	$	33.73
Total value of shares repurchased	$	—	$	18.7	$	15.3	$	32.3

The following table summarizes the remaining authorized repurchase amounts in the aggregate under the stock repurchase programs as of September 30, 2020:

(millions) (unaudited)	September 30, 2020
Total authorized repurchase amount	$	100.0
Total value of shares repurchased		40.6
Total remaining authorized repurchase amount	$	59.4