Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill, included in other non-current assets in our consolidated balance sheets, for the years ended December 31 were as follows:

	2018		2017
Beginning balance	$	30.1	$	30.1
Goodwill acquired	—		—
Ending balance	$	30.1	$	30.1

Schedule of Finite-Lived Intangible Assets

Other intangible assets, included in other non-current assets in our consolidated balance sheets, consist of the following:

	As of December 31, 2018
	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	8.5 to 10.8 years	$	17.1	$	(5.0	)	$	12.1
Trade name	15 to 20 years	14.3		(2.1		)	12.2
Non-compete agreements	3 to 5 years	0.3		(0.2		)	0.1
Other intangible assets	10 years	0.2		(0.1		)	0.1
Total		$	31.9	$	(7.4	)	$	24.5

	As of December 31, 2017
	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	8.5 to 10.8 years	$	17.1	$	(3.2	)	$	13.9
Trade name	15 to 20 years	14.3		(1.3		)	13.0
Non-compete agreements	3 to 5 years	0.3		(0.2		)	0.1
Other intangible assets	10 years	0.2		(0.1		)	0.1
Total		$	31.9	$	(4.8	)	$	27.1

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated future amortization expense related to our intangible assets for the years ending December 31 are as follows:

2019	$	2.5
2020	2.5
2021	2.5
2022	2.5
2023	2.5
After 2023	12.0
	$	24.5