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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net income (loss)	$ (113)	$ 5,271	$ 41,043	$ 10,747
Other comprehensive income net of tax:
Minimum pension liability, net of income tax effect of $0, $53, $0 and $53	0	143	0	143
Unrealized gain (loss) on investments sale, net of income tax effect of $(28), $(126), $(179) and $(26)	(75)	(341)	(482)	(70)
Comprehensive income (loss)	(188)	5,073	40,561	10,820
Less comp. income attributable to Noncontrolling    interest	(465)	(184)	12,236	(475)
Comprehensive income attributable to the Company	$ 277	$ 5,257	$ 28,325	$ 11,295

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