INTANGIBLE ASSETS AND LIABILITIES

The following table summarizes the Company’s intangible assets and liabilities as of December 31, 2017 and 2016 (in thousands):



	December 31,
	2017			2016
Lease Intangible Assets:
Above market leases	$	76,443		$	—
Tenant origination and absorption costs	76,336			23,987
Tenant relationship	27,436			7,430
Gross lease intangible assets	180,215			31,417
Accumulated amortization	(13,096		)	(5,167		)
Lease intangible assets, net	$	167,119		$	26,250
Lease Intangible Liabilities:
Below market leases	$	102,643		$	—
Accumulated amortization	(4,628		)	—
Lease intangible liabilities, net	$	98,015		$	—

The following is a summary of real estate intangible amortization income (expense) for the years ended December 31, 2017, 2016 and 2015 (in thousands):



	Year Ended December 31,
	2017			2016			2015
Increase to rental income related to above/below market leases, net	$	912		$	—		$	—
Depreciation and amortization related to tenant origination and absorption costs and tenant relationship	(11,822		)	(3,182		)	(3,195		)

The remaining unamortized balance for these outstanding intangible assets and liabilities as of December 31, 2017 will be amortized for the years ending December 31 as follows (dollars in thousands):



	Lease Intangible Assets		Lease Intangible Liabilities
2018	$	21,814	$	13,588
2019	21,612		13,588
2020	18,482		12,328
2021	16,619		8,119
2022	15,193		7,227
Thereafter	73,399		43,165
	$	167,119	$	98,015

Weighted-average remaining amortization period	10.5 years		9.8 years