Cash Flow Disclosures And Non Cash Investing And Financing Activities (Non-cash Investing And Financing Activities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Non-cash Investing and Financing Activities [Abstract]
Common Shares issued as part of the Dividend Reinvestment Plan	$ 31	$ 32
Debt assumed, including premium	14,750	$ 28,902
Deposit paid in prior period towards acquisition which closed in current period	5,000
Cash paid for income taxes	669
Accrued payables for fixed assets placed into service	467
Contribution of fixed assets to joint venture	$ 264,658