Valuation And Qualifying Accounts (Parenthetical) (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure Valuation And Qualifying Accounts [Abstract]
Deferred income tax assets for state income tax NOLs	$ 60,000,000	$ 68,800,000	$ 56,700,000
Deferred Tax Assets, Valuation Allowance	46,676,000	50,969,000	49,500,000
Deferred tax assets for federal NOLs	119,100,000	51,400,000	25,500,000
Deferred income tax assets for federal income tax NOLs, valuation allowance	$ 0	$ 0	$ 200,000