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Earnings Per Share - Share-based Compensation (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total exercised or released (in shares)	34,261	402,996	1,684,039	1,018,595
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	205	239,839	656,573	239,839
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	34,056	163,157	735,813	504,040
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)	0	0	291,653	274,716

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).

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