Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Remaining Performance Obligation

The total amount of the transaction price for our revenue contracts allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of December 31, 2020 (Successor) is as follows:

	2021		2022		2023		2024		2025		Thereafter		Total
Future revenue	$	1,138.2	$	534.2	$	261.1	$	94.6	$	66.2	$	134.8	$	2,229.1

Schedule of Contract Balances

	Successor				Predecessor
	At December 31, 2020		At December 31, 2019		At December 31, 2018
Accounts receivable, net	$	313.7	$	269.3	$	270.8
Short-term contract assets	$	1.4	$	1.0	$	1.3
Long-term contract assets	$	3.8	$	2.8	$	2.6
Short-term deferred revenue	$	467.2	$	467.5	$	529.1
Long-term deferred revenue	$	16.3	$	7.8	$	7.3

Schedule of Amortization of Commission Assets

The amortization of commission assets is as follows:

Period	Amortization
Year ended December 31, 2020 (Successor)	$	17.0
Period from January 1 to December 31, 2019 (Successor)	$	4.7
Period from January 1 to February 7, 2019 (Predecessor)	$	3.2
Year ended December 31, 2018 (Predecessor)	$	26.9