Income Taxes (Tables)

12 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The provisions for income taxes consisted of the following:

	For the Years Ended September 30,
	2018			2017			2016
Current:
United States - Federal	$	42.5		$	39.4		$	9.5
State	0.1			4.2			3.0
Foreign	37.3			32.6			21.3
Total current	79.9			76.2			33.8
Deferred:
United States - Federal	4.5			(7.4		)	5.5
State	(0.5		)	(0.2		)	(2.4		)
Foreign	(2.2		)	3.2			1.1
Total deferred	1.8			(4.4		)	4.2
Provision for income taxes	$	81.7		$	71.8		$	38.0

Schedule of Income before Income Tax, Domestic and Foreign

The source of pre-tax earnings was:

	For the Years Ended September 30,
	2018		2017		2016
United States	$	8.7	$	96.4	$	40.2
Foreign	166.5		176.9		125.5
Pre-tax earnings	$	175.2	$	273.3	$	165.7

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income taxes with the amounts computed at the statutory federal income tax rate follows:

	For the Years Ended September 30,
	2018					2017					2016
Computed tax at federal statutory rate	$	42.9		24.5	%	$	95.7		35.0	%	$	58.0		35.0	%
State income taxes, net of federal tax benefit	0.3			0.2		2.8			1.0		1.7			1.0
Foreign tax less than the federal rate	0.7			0.4		(23.0		)	(8.4	)	(18.8		)	(11.3	)
Other taxes including repatriation of foreign earnings	2.1			1.2		2.2			0.8		5.7			3.4
Foreign tax incentives	(6.3		)	(3.6	)	(3.5		)	(1.3	)	(2.9		)	(1.8	)
Impact of the Tax Act	39.0			22.3		—			—		—			—
Other, net	3.0			1.6		(2.4		)	(0.8	)	(5.7		)	(3.4	)
Total	$	81.7		46.6	%	$	71.8		26.3	%	$	38.0		22.9	%

Schedule of Deferred Tax Assets and Liabilities

The deferred tax assets and deferred tax liabilities at the end of each year are as follows:

	September 30,
	2018			2017
Deferred tax assets:
Accrued liabilities	$	40.9		$	57.3
Deferred and stock-related compensation	16.9			25.0
Tax loss carryforwards and tax credits	13.4			18.3
Intangible assets	0.6			0.8
Pension plans	12.2			24.3
Inventory differences and other tax assets	2.1			10.2
Gross deferred tax assets	86.1			135.9
Deferred tax liabilities:
Depreciation and property differences	(16.2		)	(16.2		)
Intangible assets	(38.1		)	(65.6		)
Other tax liabilities	(2.2		)	(3.6		)
Gross deferred tax liabilities	(56.5		)	(85.4		)
Valuation allowance	(12.0		)	(19.3		)
Net deferred tax assets	$	17.6		$	31.2

Summary of Income Tax Contingencies

The unrecognized tax benefits activity is summarized below:

	For the Years Ended September 30,
	2018		2017			2016
Unrecognized tax benefits, beginning of year	$	9.5	$	9.4		$	8.5
Additions based on current year tax positions and acquisitions	1.4		1.3			0.9
Reductions for prior year tax positions	—		—			—
Settlements with taxing authorities/statute expirations	—		(1.2		)	—
Unrecognized tax benefits, end of year	$	10.9	$	9.5		$	9.4