Weighted Average Shares (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Calculation of Weighted Average Shares

Weighted-average shares were calculated as follows (in thousands):

	Year Ended December 31,
	2021	2020	2019
Basic weighted-average common shares outstanding	176,463	173,489	171,194
Effect of dilutive stock awards	3,453	3,103	4,075
Diluted weighted-average common and common-equivalent shares outstanding	179,916	176,592	175,269