Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Other Assets
Deferred leasing costs	$ 28,759	$ 27,229
Deferred rent receivable	24,425	21,510
Corporate furniture, fixtures and equipment	7,752	7,980
Internal-use software	4,141	2,421
Deferred financing costs	7,100	7,474
Prepaid expense	4,288	6,251
Other	1,104	2,735
Total	77,569	75,600
Estimated amortization of deferred leasing costs
Total	$ 28,759	$ 27,229