Debt and Capital Markets (Schedule of Long-term Debt Instruments) (Details) $ in Thousands			3 Months Ended
	Feb. 18, 2016 USD ($) properties	Jan. 21, 2016 USD ($) shares	Jun. 30, 2016 USD ($) shares	Mar. 31, 2016 USD ($) shares	Mar. 31, 2015 USD ($)	Dec. 31, 2015 shares
Debt Instrument [Line Items]
Extinguishment of Debt, Amount	$ 4,600
Number of Properties Securing Mortgage Note | properties	1
Costs associated with loan refinancing or payoff				$ 552	$ 0
Common Shares, shares issued | shares		2,250,000		65,838,128		63,195,182
Net proceeds from issuance of common shares		$ 125,000		$ 125,199	$ 123
Subsequent Event [Member]
Debt Instrument [Line Items]
Common Shares, shares issued | shares			258,263
Net proceeds from issuance of common shares			$ 16,900
Theatre Properties [Member]
Debt Instrument [Line Items]
Costs associated with loan refinancing or payoff				$ 472