Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Federal income tax rate applied to pre-tax income/loss	34.00%	34.00%
Dividends received deduction and tax-exempt interest	1.40%	(1.50%)
Company owned life insurance	0.80%	(0.60%)
Small life deduction	11.50%	(5.40%)
Other, net	(1.40%)	(1.10%)
Effective federal income tax rate	46.30%	25.40%