Earnings Per Share - Reconciliation of Weighted Average Common Shares Outstanding (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Basic weighted-average common shares outstanding (in shares)	50,770,429	50,123,565	49,883,739
Effect of dilutive options, performance stock units and restricted stock (in shares)	0	0	0
Dilute weighted-average shares outstanding (in shares)	50,770,429	50,123,565	49,883,739