Earnings Per Share - Share-based Compensation (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total exercised or released (in shares)	615,599	814,599
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	0	13,748
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	340,883	457,969
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	274,716	342,882