Summary of Significant Accounting Policies - Future Amortization of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Intangible Lease Assets
Total	$ 94,380	$ 90,594
Intangible Lease Origination Costs
2022	37,612
2023	27,044
2024	19,828
2025	14,753
2026	11,531
Thereafter	23,050
Total	$ 133,818
Weighted-Average Amortization Period (in years)	5 years
Below-Market In-place Lease Liabilities
2022	$ 11,806
2023	8,291
2024	6,139
2025	4,645
2026	3,159
Thereafter	5,301
Total	$ 39,341
Weighted-Average Amortization Period (in years)	5 years
Above-Market In-place Lease Assets
Intangible Lease Assets
2022	$ 323
2023	126
2024	93
2025	27
2026	15
Thereafter	12
Total	$ 596
Weighted-Average Amortization Period (in years)	3 years
In-Place Lease Valuation
Intangible Lease Assets
2022	$ 28,725
2023	20,569
2024	14,819
2025	10,388
2026	7,158
Thereafter	12,125
Total	$ 93,784
Weighted-Average Amortization Period (in years)	5 years

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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