Stock-Based Compensation - Schedule of Grants (Details) - shares	Sep. 30, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding (in shares)	1,500	9,500
RSUs Outstanding (in shares)	3,960,001
Options and RSUs Exercised (in shares)	7,745,649
Available Shares (in shares)	2,705,861
Total (in shares)	14,413,011
2017 ECP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding (in shares)	0
RSUs Outstanding (in shares)	3,960,001
Options and RSUs Exercised (in shares)	2,734,138
Available Shares (in shares)	2,705,861
Total (in shares)	9,400,000
2010 ECP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding (in shares)	1,500
RSUs Outstanding (in shares)	0
Options and RSUs Exercised (in shares)	5,011,511
Available Shares (in shares)	0
Total (in shares)	5,013,011