Goodwill and Other Intangible Assets, Net

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets, Net

Goodwill and Other Intangible Assets, Net

The change in the carrying amount of goodwill for the six months ended June 30, 2021 was as follows:

	(in millions)
Goodwill at December 31, 2020	$	39.8
Foreign currency translation	0.1
Goodwill at June 30, 2021	$	39.9

The gross carrying amount, accumulated amortization and net book value of intangible assets at the end of each period were as follows:

	June 30, 2021						December 31, 2020
(in millions)	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Customer relationships	$	43.4	$	(20.9)	$	22.5	$	43.3	$	(18.3)	$	25.0
Internal-use software	19.0		(9.5)		9.5		11.4		(8.6)		2.8
Intellectual property	1.6		(0.2)		1.4		1.1		(0.2)		0.9
Total intangible assets	$	64.0	$	(30.6)	$	33.4	$	55.8	$	(27.1)	$	28.7

Amortization expense for intangible assets was $1.8 million and $0.7 million for the three months ended June 30, 2021 and 2020, respectively. Amortization expense for intangible assets was $3.5 million and $1.5 million for the six months ended June 30, 2021 and 2020, respectively.