Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2019

Receivables [Abstract]

Schedule of accounts receivable

	June 30, 2019			September 30, 2018
		(in millions)
Trade receivables	$	13.1		$	17.8
Less: long-term receivable recorded in other assets		(1.8	)		(2.2	)
Other receivables		0.1			0.1
Allowance for doubtful accounts		(0.7	)		(1.4	)
Total accounts receivable, net	$	10.7		$	14.3