12.	Goodwill and Other Intangible Assets

As discussed in Note

11,

Acquisitions, in

first

quarter

2019,

we recorded additional goodwill of approximately

$28.4

million and additional finite-lived intangible assets of approximately

$65.5

million in connection with the Cory acquisition. Total goodwill was

$68.5

million and

$40.1

million at

March 31, 2019,

and

December 31, 2018,

respectively. All goodwill is assigned to our Dedicated Contract Services® business segment and

impairment losses have been recorded for goodwill as of

March 31, 2019.

Prior to the Cory acquisition, our intangible assets consisted of those arising from a previous business acquisition and our purchased LDC network access, both within our Dedicated Contract Services® segment. Identifiable intangible assets consist of the following (in millions):

							Weighted Average
							Amortization
	March 31, 2019			December 31, 2018			Period
Finite-lived intangibles:
Non-competition agreements	$	1.2		$	0.2		6.7
Customer relationships		139.8			75.3		10.0
LDC Network		10.5			10.5		10.0
Total finite-lived intangibles		151.5			86.0
Less accumulated amortization		(23.1	)		(20.9	)
Total identifiable intangible assets, net	$	128.4		$	65.1

Our finite-lived intangible assets have

assigned residual values.

Intangible asset amortization expense was

2.2

million for the

first

quarter

2019

and

2018.

Estimated amortization expense for our finite-lived intangible assets is expected to be approximately

$12.8

million for

2019

and

14.2

million for

2020

through

2023.

Actual amounts of amortization expense

may

differ from estimated amounts due to additional intangible asset acquisitions, impairment or accelerated amortization of intangible assets, and other events.