Revenue

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

The total amount of the transaction price for our revenue contracts allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of September 30, 2020 (Successor) is as follows:

	Fourth Quarter 2020		2021		2022		2023		2024		Thereafter		Total
Future revenue	$	377.1	$	810.9	$	375.9	$	172.8	$	72.5	$	281.5	$	2,090.7

The table of future revenue does not include any amount of variable consideration that is a sales or usage-based royalty in exchange for distinct data licenses or that is allocated to a distinct service period within a single performance obligation that is a series of distinct service periods.

Contract Balances

	At September 30, 2020		At December 31, 2019
Accounts receivable, net	$	250.4	$	269.3
Short-term contract assets	$	0.4	$	1.0
Long-term contract assets	$	1.3	$	2.8
Short-term deferred revenue	$	481.6	$	467.5
Long-term deferred revenue	$	13.7	$	7.8

The increase in deferred revenue of $20.0 million from December 31, 2019 to September 30, 2020 was primarily due to cash payments received or due in advance of satisfying our performance obligations, and the decrease of the purchase accounting fair value adjustments from our Take-Private Transaction in February 2019, largely offset by approximately $467.0 million of revenue recognized that were included in the deferred revenue balance at December 31, 2019.

The decrease in contract assets of $2.1 million is primarily due to $3.2 million of contract assets included in the balance at January 1, 2020 that were reclassified to receivables when they became unconditional, largely offset by new contract assets recognized in the period, net of new amounts reclassified to receivables.

Assets Recognized for the Costs to Obtain a Contract

Commission assets, net of accumulated amortization included in deferred costs, were $69.1 million and $47.0 million as of September 30, 2020 and December 31, 2019, respectively.

The amortization of commission assets is as follows:

Period	Amortization
Three months ended September 30, 2020 (Successor)	$	4.6
Nine months ended September 30, 2020 (Successor)	$	11.8
Three months ended September 30, 2019 (Successor)	$	1.5
Period from January 1 to September 30, 2019 (Successor)	$	2.4
Period from January 1 to February 7, 2019 (Predecessor)	$	3.2