Intangibles - Summary of Gross Carrying Amount and Accumulated Amortization of Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Intangible assets:
Total intangible assets, gross	$ 223,869	$ 113,499
Total accumulated amortization	(52,809)	(13,294)
Intangible assets, net	171,060	100,205
Intangible liabilities:
Below-market lease intangibles	32,714	7,032
Accumulated amortization	(2,494)	(331)
Below Market Lease Net	30,220	6,701
In-place Lease Intangibles
Intangible assets:
Total intangible assets, gross	170,754	77,311
Total accumulated amortization	(47,314)	(12,341)
Intangible assets, net	123,440
Above Market Leases Intangibles
Intangible assets:
Total intangible assets, gross	22,096	5,387
Total accumulated amortization	(2,540)	(318)
Intangible assets, net	19,556
Other
Intangible assets:
Total intangible assets, gross	31,019	30,801
Total accumulated amortization	(2,955)	$ (635)
Intangible assets, net	$ 28,064