Notes Payable - Future Principal Payments - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Contractual obligations for principal payments
July 1, 2016 - December 31, 2016	$ 1,030
2017	40,151
2018	46,807
2019	24,308
2020	13,771
Thereafter	17,846
Total contractual obligations for principal payments	143,913
Unamortized premium	322
Total notes payable	144,235	$ 178,692
Deferred financing fees, net	(1,006)	(1,656)
Notes payable, net	143,229	$ 177,036
Notes Payable, Assets Held-for-sale [Member]
Contractual obligations for principal payments
Total notes payable	33,500
Deferred financing fees, net	$ (375)