Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance	$ 17,233
Other comprehensive income (loss) before reclassification adjustment	(12,485)	$ 15,407
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1,455	(3,619)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0	0
Total other comprehensive (loss) income	(11,035)	11,773
Accumulated Other Comprehensive Income (Loss), Ending Balance	6,198
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance	20,310	4,580
Other comprehensive income (loss) before reclassification adjustment	(12,485)	15,407
Amounts reclassified from accumulated other comprehensive income (loss)	(5)	(15)
Total other comprehensive (loss) income	(12,490)	15,392
Accumulated Other Comprehensive Income (Loss), Ending Balance	7,820	19,972
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance	(182)	365
Other comprehensive income (loss) before reclassification adjustment	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Total other comprehensive (loss) income	0	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	(182)	365
Derivative [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance	(2,895)	634
Total other comprehensive (loss) income	1,455	(3,619)
Accumulated Other Comprehensive Income (Loss), Ending Balance	(1,440)	(2,985)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance	17,233	5,579
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(11,030)	11,788
Amounts reclassified from accumulated other comprehensive income (loss)	(5)	(15)
Total other comprehensive (loss) income	(11,035)	11,773
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ 6,198	$ 17,352