Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 2,535	$ (1,016)	$ 1,732
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	5,024	(2,275)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,473)	(473)
Other Comprehensive Income (Loss), Net of Tax	3,551	(2,748)	4,696
Accumulated Pension Plan Adjustment Net Unamortized Gain Loss [Domain]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(140)	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(140)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	(140)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	48	139	398
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(91)	(259)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other Comprehensive Income (Loss), Net of Tax	(91)	(259)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(518)	(314)	(1,564)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(204)	1,250
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other Comprehensive Income (Loss), Net of Tax	(204)	1,250
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	3,145	(841)	$ 2,898
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	5,459	(3,266)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(1,473)	(473)
Other Comprehensive Income (Loss), Net of Tax	$ 3,986	$ (3,739)