Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity

The following table summarizes the changes in shares of Common Stock outstanding and Treasury Stock:

	Common Stock Outstanding	Treasury Stock
Balance at December 31, 2018	187,675,082	135,662,830
Repurchases of common stock	(18,595,315)	18,595,315
Issuance of treasury stock	1,276,797	(1,276,797)
Conversions to common stock	92,379	(92,379)
Balance at December 31, 2019	170,448,943	152,888,969
Issuance of treasury stock	1,526,245	(1,526,245)
Balance at December 31, 2020	171,975,188	151,362,724
Issuance of treasury stock	2,756,207	(2,756,207)
Balance at December 31, 2021	174,731,395	148,606,517