Income Taxes (Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal tax rate	21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	0.00%	0.00%	(0.10%)
State income taxes, net of federal tax benefit	5.10%	1.40%	(0.20%)
effective tax rate reconciliation, non-deductible expense, warrant remeasurement, percent	16.60%	(2.90%)	(1.50%)
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent	0.00%	0.00%	0.80%
Tax effect of other non-deductible expenses	3.20%	1.70%	0.80%
Other	(1.10%)	0.40%	(0.60%)
Effective income tax rate	39.40%	16.20%	22.40%
return to income tax provision adjustment [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Other	(5.40%)	(5.40%)	3.80%