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Earnings Per Share (EPS Computations) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss)	$ 10,899	$ (6,167)	$ 27,301	$ 6,766
Less: Loss (earnings) allocated to unvested restricted stock	(6)	8	(20)	(13)
Income (loss) attributable to common stockholders	$ 10,893	$ (6,159)	$ 27,281	$ 6,753
Denominator [Abstract]
Denominator for basic earnings per common share - weighted average shares outstanding (in shares)	14,798,000	17,967,000	15,020,000	17,966,000
Denominator for diluted earnings per common share - weighted average shares outstanding (in shares)	15,712,000	18,511,000	16,033,000	18,364,000
Basic and Diluted earnings per common share:
Basic earnings (loss) per common share (in dollars per share)	$ 0.74	$ (0.34)	$ 1.82	$ 0.38
Diluted earnings (loss) per common share (in dollars per share)	$ 0.69	$ (0.33)	$ 1.70	$ 0.37
Stock options
Denominator [Abstract]
Effect of dilutive securities (in shares)	226,000	213,000	325,000	232,000
Basic and Diluted earnings per common share:
Antidilutive securities excluded from computation of diluted EPS	366,038	0	259,359	0
Performance awards
Denominator [Abstract]
Effect of dilutive securities (in shares)	688,000	331,000	688,000	166,000

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