Intangible Assets (Goodwill Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Assets [Abstract]
Document Fiscal Year Focus	2015	2014	2013
Goodwill [Roll Forward]
Beginning Balance	$ 3,867	$ 4,131
Allocated to property sales	(220)	(264)
Ending Balance	$ 3,647	$ 3,867	$ 4,131