Stockholders' Equity - Reconciliation of Denominators used in Computation of Basic and Diluted Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Stockholders' Equity Note [Abstract]
Basic weighted average shares outstanding (in shares)	573,913,929	573,452,002	573,673,031	572,934,475
Weighted shares assumed upon exercise of stock options (in shares)	2,203,402	914,771	1,797,201	1,042,830
Diluted weighted average shares outstanding (in shares)	576,117,331	574,366,773	575,470,232	573,977,305