Share-Based Compensation Plans	6 Months Ended
Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation Plans	(4) Share-Based Compensation Plans During the three months ended June 30, 2021 and 2020, we recognized share-based compensation expense of $9.4 and $6.9, respectively, and $16.9 and $11.5 for the six months ended June 30, 2021, 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 $4.2 and $6.8 for the six months ended June 30, 2021 and 2020, respectively.

Share-Based Compensation Plans

6 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

(4) Share-Based Compensation Plans

During the three months ended June 30, 2021 and 2020, we recognized share-based compensation expense of $9.4 and $6.9, respectively, and $16.9 and $11.5 for the six months ended June 30, 2021, 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 $4.2 and $6.8 for the six months ended June 30, 2021 and 2020, respectively.