Earnings Per Share - Reconciliation of Weighted Average Common Shares Outstanding (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Basic (in shares)	51,348,000	50,758,000	51,191,000	50,647,000
Effect of dilutive options, performance stock units and restricted stock (in shares)	0	0	0	0
Weighted number of shares used for diluted earnings (loss) per share (in shares)	51,348,000	50,758,000	51,191,000	50,647,000