Accumulated Other Comprehensive Income (Loss) (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Net unrealized gains and losses, beginning of period	$ (473)	$ (1,898)	$ (1,847)	$ (1,191)
Other comprehensive gain (losses), net of tax before reclassifications	1,517	(284)	2,891	(991)
Net other comprehensive gain (loss)	1,517	(284)	2,891	(991)
Net unrealized gains and losses, end of period	$ 1,044	$ (2,182)	$ 1,044	$ (2,182)