Earnings Per Share - Reconciliation of Weighted Average Common Shares Outstanding (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Basic (in shares)	51,583,000	51,002,000	51,323,000	50,766,000
Effect of dilutive options, performance stock units and restricted stock (in shares)	0	0	0	0
Diluted (in shares)	51,583,000	51,002,000	51,323,000	50,766,000