Earnings Per Share (Earnings Per Share) (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
Income (numerator) [Abstract]
Net earnings (loss) available to common shareholders	$ 30,402	$ 29,435	$ 59,368	$ 55,400
Diluted earnings (loss) per share, Net income (loss) available to common shareholders	$ 30,402	$ 29,435	$ 59,368	$ 55,400
Shares (denominator) [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in shares)	56,801,518	57,230,576	56,962,000	57,232,557
Effect of dilutive securities, Common stock options and restricted stock units (in shares)	652,212	1,792,349	810,538	1,854,399
Diluted earnings (loss) per share, Net income (loss) available to common shareholders (in shares)	57,453,730	59,022,925	57,772,538	59,086,956
Per share amount [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in dollars per share)	$ 0.54	$ 0.51	$ 1.04	$ 0.97
Effect of dilutive securities, Common stock options and restricted stock units (in dollars per share)	(0.01)	(0.01)	(0.01)	(0.03)
Net income per share - diluted	$ 0.53	$ 0.50	$ 1.03	$ 0.94
Continuing Operations [Member]
Income (numerator) [Abstract]
Net earnings (loss) available to common shareholders		$ 29,158		$ 55,218
Diluted earnings (loss) per share, Net income (loss) available to common shareholders		$ 29,158		$ 55,218
Shares (denominator) [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in shares)		57,230,576		57,232,557
Effect of dilutive securities, Common stock options and restricted stock units (in shares)		1,792,349		1,854,399
Diluted earnings (loss) per share, Net income (loss) available to common shareholders (in shares)		59,022,925		59,086,956
Per share amount [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in dollars per share)		$ 0.51		$ 0.96
Effect of dilutive securities, Common stock options and restricted stock units (in dollars per share)		(0.02)		(0.03)
Net income per share - diluted		$ 0.49		$ 0.93
Discontinued Operations [Member]
Income (numerator) [Abstract]
Net earnings (loss) available to common shareholders		$ 277		$ 182
Diluted earnings (loss) per share, Net income (loss) available to common shareholders		$ 277		$ 182
Shares (denominator) [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in shares)		57,230,576		57,232,557
Effect of dilutive securities, Common stock options and restricted stock units (in shares)		1,792,349		1,854,399
Diluted earnings (loss) per share, Net income (loss) available to common shareholders (in shares)		59,022,925		59,086,956
Per share amount [Abstract]
Basic earnings (loss) per share, Net income (loss) available to common shareholders (in dollars per share)				$ 0.01
Net income per share - diluted				$ 0.01