Contract Liabilities and Other Disclosures (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Schedule of changes in contract liabilities

	Deferred Income
		(in millions)
Balance at October 1, 2018	$	(33.1	)
Revenue recognized		9.5
Revenue deferred		(5.6	)
Foreign currency translation adjustments		0.6
Balance at June 30, 2019	$	(28.6	)

	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	)

Schedule of contract related balances (other than deferred income disclosed above)

	Accounts Receivable		Unbilled Accounts Receivable		Customer Prepayments and Deposits
		(in millions)
At October 1, 2018	$	17.8	$	10.8	$	(3.7	)
At June 30, 2019		13.1		7.2		(5.1	)

	Accounts Receivable		Unbilled Accounts Receivable		Customer Prepayments and Deposits
		(in millions)
At October 1, 2017	$	25.5	$	9.5	$	(4.3	)
At September 30, 2018		17.8		10.8		(3.7	)