Earnings per Share (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 basic common shares outstanding	44,491	44,371	44,470	44,349
Performance shares	345	341		394
Restricted stock	63	4		111
Weighted average diluted common and potential common shares outstanding	44,899	44,716	44,470	44,854