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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 7,430	$ 23,061	$ 23,551	$ 45,787
Other comprehensive income, net of tax:
Unrealized gains on available for sale securities arising during the period	24,625	6,729	3,803	15,681
Change in minimum pension liability	1,126	0	2,038	0
Other comprehensive income	25,751	6,729	5,841	15,681
Comprehensive income (loss)	$ 33,181	$ 29,790	$ 29,392	$ 61,468

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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