Share-Based Payments - Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Shares
Outstanding, December 31, 2020 (in shares) | shares	628
Granted (in shares) | shares	109
Exercised (in shares) | shares	(8)
Forfeitures (in shares) | shares	(18)
Outstanding, December 31, 2021 (in shares) | shares	711
Exercisable, December 31, 2021 (in shares) | shares	510
Weighted- Average Exercise Price per Share
Outstanding, December 31, 2020 (in dollars per share) | $ / shares	$ 50.65
Granted (in dollars per share) | $ / shares	80.40
Exercised (in dollars per share) | $ / shares	69.23
Forfeitures (in dollars per share) | $ / shares	77.01
Outstanding, December 31, 2021 (in dollars per share) | $ / shares	54.33
Exercisable, December 31, 2021 (in USD per share) | $ / shares	$ 45.65
Weighted- Average Remaining Life (Years)
Outstanding, December 31, 2021	5 years 10 months 24 days
Exercisable, December 31, 2021	4 years 9 months 18 days
Aggregate Intrinsic Value
Outstanding, December 31, 2021 | $	$ 10.4
Exercisable, December 31, 2021 | $	$ 10.4