Acquired Lease Intangibles (Details) - Future Amortization of Acquired Lease Intangible Assets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Acquired Lease Intangibles (Details) - Future Amortization of Acquired Lease Intangible Assets [Line Items]
Total future amortization of acquired lease intangible assets	$ 79,205	$ 66,942
Acquired Lease Intangible Assets
Acquired Lease Intangibles (Details) - Future Amortization of Acquired Lease Intangible Assets [Line Items]
2017	15,068
2018	11,406
2019	7,557
2020	6,083
2021	4,988
Thereafter	34,103
Total future amortization of acquired lease intangible assets	$ 79,205