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Intangible Assets, net (Tables)

12 Months Ended

Dec. 31, 2020

Intangible Assets, net

Summary of intangible assets, net


			December 31, 2020						December 31, 2019
	Weighted Average		Gross						Gross
	Amortizable		Carrying			Accumulated			Carrying			Accumulated
	Life in Years		Amount			Amortization			Amount			Amortization

			(in millions)
Intangible assets subject to amortization:
Covenants not to compete	5.0		$	0.7		$	(0.5)		$	0.7		$	(0.4)
Customer lists/relationships	14.9			623.2			(396.7)			710.1			(438.1)
Software	10.0			8.1			(8.1)			8.1			(8.1)
Other	7.7			1.1			(0.9)			1.1			(0.9)
				633.1			(406.2)			720.0			(447.5)
Intangible assets not subject to amortization:
Trade names				720.2			—			758.6			—
			$	1,353.3		$	(406.2)		$	1,478.6		$	(447.5)

Summary of estimated aggregate amortization expense


	(in millions)
2021	$	36.6
2022		35.9
2023		31.6
2024		28.1
2025		23.9