Intangible Assets

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

The following summarizes the Company’s identifiable intangible assets as of December 31, 2015 and December 31, 2014:

	December 31,
(Dollars in millions)	2015			2014
Definite-lived intangibles:
Customer relationships	$	2,017.0		$	376.6
Trade names	51.0			15.4
Non-compete agreements	18.7			9.8
Carrier relationships	12.1			12.1
Other intangible assets	2.2			2.2
	2,101.0			416.1
Less: Accumulated amortization	(224.5		)	(74.6		)
Total Identifiable Intangible Assets, net	$	1,876.5		$	341.5

At December 31, 2015, accumulated amortization consists of $174.4 million for customer relationships, $29.1 million for trade names, $6.8 million for non-compete agreements, $12.1 million for carrier relationships, and $2.1 million for other intangible assets. At December 31, 2014, accumulated amortization consists of $52.0 million for customer relationships, $9.2 million for trade names, $2.9 million for non-compete agreements, $8.4 million for carrier relationships, and $2.1 million for other intangible assets.

Estimated future amortization expense for amortizable intangible assets for the next five years is as follows:

(Dollars in millions)	2016		2017		2018		2019		2020
Estimated amortization expense	$	201.3	$	187.4	$	179.0	$	172.7	$	166.6

Actual amounts of amortization expense may differ from estimated amounts due to changes in foreign currency exchange rates, additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events.

Intangible asset amortization expense recorded in sales, general and administrative expense was $160.8 million, $62.5 million and $14.1 million for the years ended December 31, 2015, 2014 and 2013, respectively.