Other Assets - Summary of Future Amortization of Deferred Leasing Costs and Capitalized Lease Incentives (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Leasing Costs
2018	$ 7,707
2019	7,694
2020	7,383
2021	6,595
2022	6,046
Thereafter	28,114
Deferred leasing costs, net	63,539	$ 92,623
Capitalized Lease Incentives
2018	983
2019	798
2020	758
2021	592
2022	547
Thereafter	2,830
Capitalized lease incentives, net	$ 6,508	$ 7,664