Acquired Lease Intangibles (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
Goodwill and Intangible Assets Disclosure [Abstract] | |||
Amortization of above and below Market Leases | $ 13,965 | $ 17,078 | $ 13,847 |
Amortization of acquired in place leases | $ 11,400 | $ 14,400 | $ 15,600 |