Summary of Significant Accounting Policies - Gross Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible Lease Origination Costs (included as component of Deferred Lease Costs)	$ 266,575	$ 250,367
Intangible Lease Liabilities (Below-Market In-Place Leases)	75,221	62,784
Above-Market In-place Lease Assets
Finite-Lived Intangible Assets [Line Items]
Intangible lease assets	1,882	2,167
In-Place Lease Valuation
Finite-Lived Intangible Assets [Line Items]
Intangible lease assets	$ 176,275	$ 156,277