Weighted Average Common Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Weighted average common shares for basic earnings per share (in shares)	164,435	164,321	164,397	164,294
Effect of dilutive share awards: Unvested share awards (in shares)	0	27	0	38
Weighted average common shares for diluted earnings per share (in shares)	164,435	164,348	164,397	164,332