Contract Liabilities and Other Disclosures

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Contract Liabilities and Other Disclosures

11. Contract Liabilities and Other Disclosures

The following table summarizes the changes in contract liabilities:

	Deferred Income
	(in millions)
Balance at October 1, 2017	$	(27.3	)
Revenue recognized		10.6
Revenue deferred		(16.9	)
Foreign currency translation adjustments		0.5
Balance at September 30, 2018	$	(33.1	)
Revenue recognized		3.0
Revenue deferred		(2.4	)
Foreign currency translation adjustments		0.5
Balance at December 31, 2018	$	(32.0	)
Revenue recognized		13.5
Revenue deferred		(11.0	)
Acquisitions		(0.4	)
Foreign currency translation adjustments		2.1
Balance at December 31, 2019	$	(27.8	)

Revenue recognized that was included in the deferred income balance at the beginning of the period amounted to $9.6 million, $2.7 million and $7.7 million for the year ended December 31, 2019, the three months ended December 31, 2018 and the year ended September 30, 2018, respectively.

The following table summarizes contract related balances (other than deferred income disclosed above):

	Accounts Receivable		Unbilled Accounts Receivable		Customer Prepayments and Deposits
	(in millions)
At September 30, 2018	$	17.8	$	10.8	$	(3.7	)
At December 31, 2019	$	24.5	$	15.3	$	(1.9	)