OTHER ASSETS

12 Months Ended

Dec. 31, 2018

8.	OTHER ASSETS

Other assets consist of the following (in thousands):

	December 31,
	2018		2017
Intangible assets:
Below market lease value, less accumulated amortization of $8,850 and $6,920, respectively		32,738		34,668
Deferred leasing assets, less accumulated amortization of $2,021 and $276, respectively		43,856		914
Other intangible assets, less accumulated amortization of $5,118 and $2,349, respectively		17,311		7,671
Lease incentive assets		6,096		6,738
Debt issuance costs, less accumulated amortization of $631 and $2,711, respectively		3,322		2,518
Cash equivalents and cash surrender value of life insurance held in Rabbi trust		13,977		13,537
Straight-line rent receivable		10,729		9,335
Other		13,178		13,337
	$	141,207	$	88,718

The gross carrying amount of intangible assets amounted to $109.9 million and $52.8 million at December 31, 2018 and 2017, respectively. Amortization expense related to intangible assets was $6.5 million, $3.4 million, and $2.9 million for 2018, 2017, and 2016, respectively, and depending upon the nature of the asset, was either reported as operating expense or depreciation and amortization in the accompanying statement of operations for the respective periods.

As of December 31, 2018, the estimated amortization expense related to intangible assets for each of the next five years is as follows (in thousands):

2019	$	8,477
2020		7,814
2021		6,886
2022		5,937
2023		4,921