Real Estate - Intangibles (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Real Estate [Abstract]
In-place lease valuation (above market)	$ 49,578	$ 43,576
In-place lease valuation (above market) - accumulated amortization	(35,049)	(35,604)
In-place lease valuation (above market), net	14,529	7,972
Ground leasehold interest (below market)	2,254	2,254
Ground leasehold interest (below market) - accumulated amortization	(219)	(191)
Ground leasehold interest (below market), net	2,035	2,063
Intangibles - other	32,028	4,240
Intangibles - other - accumulated amortization	(5,492)	(4,240)
Intangibles - other, net	26,536	0
Intangible assets, net	43,100	10,035
In-place lease valuation (below market)	(77,859)	(68,334)
Land leasehold interest (above market)	(3,072)	(3,072)
In-place lease valuation & land leasehold interest - accumulated amortization	50,634	44,073
Intangibles - other (above market)	(329)	0
Intangible liabilities, net	(30,626)	(27,333)
Tenant origination and absorption cost	876,324	740,489
Tenant origination and absorption cost - accumulated amortization	(473,893)	(412,462)
Tenant origination and absorption cost, net	$ 402,431	$ 328,027