Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net earnings	$ 12,357	$ 134,940	$ 208,115
Weighted-average shares outstanding	53,850	57,053	54,187
Effect of dilutive stock awards	5,116	9,786	1,567
Weighted-average dilutive shares	58,966	66,839	55,754
Basic earnings per common share	$ 0.23	$ 2.37	$ 3.84
Diluted earnings per common share	$ 0.21	$ 2.02	$ 3.73
Restricted share units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted earnings per common share	80	32	1
Performance share units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted earnings per common share	197	107	3
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted earnings per common share	448	295	949