Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Commitments and Contingencies
Structural or other improvement and repair costs incurred	$ 2,137	$ 242	$ 4,215	$ 1,184
Estimated total structural and other improvement and repair costs related to lease contracts acquired in the Central Merger			$ 2,300
Expected recovery through applicable indemnity of cost incurred expressed as percentage of total cost			80.00%