Intangible Assets, Net

9 Months Ended

Sep. 30, 2020

Intangible Assets, Net [Abstract]

Intangible Assets, Net

8.INTANGIBLE ASSETS, NET

The following table provides the gross and net carrying amounts for each major class of intangible assets:

	As of September 30, 2020						As of December 31, 2019
	Gross carrying		Accumulated		Net book		Gross carrying		Accumulated		Net book
	amount		amortization		value		amount		amortization		value
	(in thousands)
Current contract intangibles	$	4,688,240	$	(2,367,997)	$	2,320,243	$	4,996,591	$	(2,218,404)	$	2,778,187
Network location intangibles		1,730,030		(986,775)		743,255		1,764,484		(915,898)		848,586
Intangible assets, net	$	6,418,270	$	(3,354,772)	$	3,063,498	$	6,761,075	$	(3,134,302)	$	3,626,773

All intangible assets noted above are included in the Company’s site leasing segment. Amortization expense relating to the intangible assets above was $108.2 million and $103.5 million for the three months ended September 30, 2020 and 2019, respectively, and $326.2 million and $307.3 million for the nine months ended September 30, 2020 and 2019, respectively.