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Earnings per Share (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income from continuing operations	$ 27,854			$ 31,334			$ 64,723	$ 65,693
(Loss) Income from discontinued operations	(298)			2,426			1,544	7,418
Net income available to common stockholders	$ 27,556	$ 25,949	$ 12,762	$ 33,760	$ 27,292	$ 12,059	$ 66,267	$ 73,111
Weighted average basic shares outstanding (in shares)	32,802,000			32,635,000			32,791,000	32,606,000
Common stock options and restricted stock (in shares)	248,000			334,000			264,000	296,000
Weighted average shares outstanding, diluted (in shares)	33,050,000			32,969,000			33,055,000	32,902,000
Common shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from earnings per share calculation (in shares)	30,000			9,000			0	24,000

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