Income Taxes (Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	2.30%	1.90%	2.50%
effective tax rate reconciliation, non-deductible expense, warrant remeasurement, percent	4.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent	(3.40%)	0.00%	0.00%
Tax effect of other non-deductible expenses	1.60%	0.90%	0.80%
Other	(0.60%)	(0.40%)	(0.20%)
Effective income tax rate	38.90%	37.40%	38.10%