Commitments And Contingencies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2015 USD ($)
Commitments And Contingencies [Line Items]
Income tax obligation	$ 2,500,000
Amount of damages claimed by plaintiff	$ 1,000,000
IRS [Member]
Commitments And Contingencies [Line Items]
Term of the installment plan	4 years
Maximum [Member]
Commitments And Contingencies [Line Items]
Lease term	35 years
Ownership percentage	50.00%
Minimum [Member]
Commitments And Contingencies [Line Items]
Lease term	1 year
Ownership percentage	20.00%