Goodwill and Other Intangible Assets - Net (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class

The following tables present other intangible assets—net as of March 31, 2020 and December 31, 2019 (in millions, except years):

	March 31, 2020
	Weighted-Average Useful Life (in Years)	Gross		Accumulated Amortization		Net
Other intangible assets—net:
Finite-lived intangible assets:
Developed technologies	4.0	$	48.8	$	25.8	$	23.0
Customer relationships	4.1	21.6		17.5		4.1
Total other intangible assets—net		$	70.4	$	43.3	$	27.1

	December 31, 2019
	Weighted-Average Useful Life (in Years)	Gross		Accumulated Amortization		Net
Other intangible assets—net:
Finite-lived intangible assets:
Developed technologies	4.0	$	50.2	$	24.6	$	25.6
Customer relationships	4.1	21.6		16.1		5.5
Total other intangible assets—net		$	71.8	$	40.7	$	31.1

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table summarizes estimated future amortization expense of finite-lived intangible assets—net (in millions):

	Amount
Years:
2020 (the remainder of 2020)	$	8.7
2021	8.3
2022	6.4
2023	3.7
Total	$	27.1