Earnings (Loss) Per Common Share (EPS) - Diluted EPS (Details) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average common shares outstanding (in shares)	55,246,000	54,917,000
Effect of dilutive stock options (in shares)		1,573,000
Total potential shares outstanding (in shares)	55,246,000	56,490,000
Diluted EPS (in dollars per share)	$ (0.06)	$ 0.11
Stock options excluded as the impact was anti-dilutive (in shares)	4,340,000	976,000
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options excluded as the impact was anti-dilutive (in shares)	2,242
Net loss incurred, the potentially dilutive effect of these options	769