INTANGIBLE ASSETS

Intangible assets at September 30, 2019 and December 31, 2018 are comprised as follows:



(in thousands)			September 30, 2019
	Gross Carrying Value			Accumulated Amortization		Net Carrying Value
Intangible assets subject to amortization:
Database	$	4,918		$	3,382	$	1,536
Vehicle service agreements in-force	3,680			3,677		3
Customer relationships	12,646			5,101		7,545
In-place lease	1,125			202		923
Non-compete	266			104		162
Intangible assets not subject to amortization:
Tenant relationship	73,667			—		73,667
Trade names	3,264			—		3,264
Total	$	99,566		$	12,466	$	87,100



(in thousands)			December 31, 2018
	Gross Carrying Value			Accumulated Amortization		Net Carrying Value
Intangible assets subject to amortization:
Database	$	4,918		$	3,013	$	1,905
Vehicle service agreements in-force	3,680			3,671		9
Customer relationships	8,914			3,691		5,223
In-place lease	1,125			155		970
Non-compete	266			64		202
Intangible assets not subject to amortization:
Tenant relationship	73,667			—		73,667
Trade names	1,290			—		1,290
Total	$	93,860		$	10,594	$	83,266

As further discussed in Note 5, "Acquisition and Discontinued Operations," during the first quarter of 2019, the Company recorded $5.7 million of separately identifiable intangible assets, related to acquired customer relationships and trade names, as part of the acquisition of Geminus. The customer relationships intangible asset of $3.7 million is being amortized over ten years based on the pattern in which the economic benefits of the intangible asset are expected to be consumed. The trade name intangible assets of $2.0 million are deemed to have indefinite useful lives and are not amortized.

The Company's other intangible assets with definite useful lives are amortized either based on the patterns in which the economic benefits of the intangible assets are expected to be consumed or using the straight-line method over their estimated useful lives, which range from seven to eighteen years. Amortization of intangible assets was $0.7 million and $1.3 million for the three months ended September 30, 2019 and September 30, 2018, respectively ($1.9 million and $1.8 million for the nine months ended September 30, 2019 and September 30, 2018, respectively).

The tenant relationship and trade name intangible assets have indefinite useful lives and are not amortized. No impairment charges were taken on intangible assets during the three and nine months ended September 30, 2019 and September 30, 2018.