Real Estate Intangibles (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Real Estate Intangibles Excluding Those Related to Ground Lease or Classified as Held For Sale

The following is a summary of our real estate intangibles, excluding those related to ground leases or classified as held for sale, as of the dates indicated (dollars in thousands):

	March 31, 2023		December 31, 2022
Assets:
In place lease intangibles	$	1,846,945	$	1,817,580
Above market tenant leases	66,354		57,203
Lease commissions	77,531		70,675
Gross historical cost	1,990,830		1,945,458
Accumulated amortization	(1,543,457)		(1,484,048)
Net book value	$	447,373	$	461,410
Liabilities:
Below market tenant leases	$	82,084	$	77,985
Accumulated amortization	(54,872)		(52,701)
Net book value	$	27,212	$	25,284

Summary of Real Estate Intangible Amortization Income (Expense)

The following is a summary of real estate intangible amortization income (expense) for the periods presented (in thousands):

	Three Months Ended March 31,
	2023		2022
Rental income related to (above)/below market tenant leases, net	$	45	$	385
Amortization related to in place lease intangibles and lease commissions	(56,151)		(47,994)