Share-Based Compensation Plans	9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-Based Compensation Plans	(4) Share-Based Compensation Plans During the three months ended September 30, 2021 and 2020, we recognized share-based compensation expense of $9.8 and $6.9, respectively, and $26.7 and $18.4 for the nine months ended September 30, 2021 and 2020, respectively. The expense relates to stock options, deferred stock, restricted stock and performance share units. We recognize share-based compensation expense in selling and administrative expenses on a straight-line basis over the service period of each award. Consideration received from share-based awards was $5.3 and $7.4 for the nine months ended September 30, 2021 and 2020, respectively.

Share-Based Compensation Plans

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

(4) Share-Based Compensation Plans

During the three months ended September 30, 2021 and 2020, we recognized share-based compensation expense of $9.8 and $6.9, respectively, and $26.7 and $18.4 for the nine months ended September 30, 2021 and 2020, respectively. The expense relates to stock options, deferred stock, restricted stock and performance share units. We recognize share-based compensation expense in selling and administrative expenses on a straight-line basis over the service period of each award. Consideration received from share-based awards was $5.3 and $7.4 for the nine months ended September 30, 2021 and 2020, respectively.