Weighted Average Common Shares (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Weighted average common shares for basic earnings per share (in shares)	164,382	164,284	164,376	164,281
Effect of dilutive share awards: Unvested share awards (in shares)	0	42	0	43
Weighted average common shares for diluted earnings per share (in shares)	164,382	164,326	164,376	164,324