Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured and recorded at fair value on a recurring basis consisted of the following at March 31, 2018:

			Fair Value at Reporting Date Using
	Balance as of March 31, 2018		Quoted Prices in Active Market for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Interest rate cap - derivative	6.2		—		6.2		—
Forward foreign currency contracts	0.7		—		0.7		—
Total	$	6.9	$	—	$	6.9	$	—
Liabilities:
Deferred compensation liabilities	$	49.2	$	49.2	$	—	$	—
Forward foreign currency contracts	4.6		—		4.6		—
Total	$	53.8	$	49.2	$	4.6	$	—