Retirement Plans (Tables)

12 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Changes in Fair Value of Plan Assets [Table Text Block]

The following table presents changes in, and components of, the Company’s net liability for retirement costs as of and for the years ended September 30, 2015, 2014, and 2013, based on measurement dates of September 30, 2015, 2014, and 2013, respectively:

(in millions)	September 30, 2015			September 30, 2014			September 30, 2013
Changes in benefit obligation:
Benefit obligation, beginning of year	$	38.2		$	37.5		$	42.8
Interest cost	1.5			1.7			1.5
Actuarial loss	0.6			2.3			(2.6		)
Benefits paid	(3.2		)	(3.3		)	(4.2		)
Benefit obligation, end of year	37.1			38.2			37.5
Changes in plan assets:
Fair value, beginning of year	31.2			28.9			26.5
Actual return	—			2.9			3.7
Employer contribution	2.2			2.7			2.9
Benefits paid	(3.2		)	(3.3		)	(4.2		)
Fair value, end of year	30.2			31.2			28.9
Funded status	$	(6.9	)	$	(7.0	)	$	(8.6	)

Schedule of Accumulated and Projected Benefit Obligations [Table Text Block]

The following table displays the Company’s defined benefit plans that have accumulated benefit obligations and projected benefit obligations in excess of the fair value of plans assets (underfunded ABO) as of September 30, 2015 and 2014:

(in millions)	September 30, 2015		September 30, 2014
Accumulated benefit obligations	$	37.1	$	38.2
Projected benefit obligations	$	37.1	$	38.2
Plan assets	$	30.2	$	31.2

Schedule of Assumptions Used [Table Text Block]

The following weighted-average assumptions were used to determine benefit obligations in the accompanying consolidated balance sheets as of September 30, 2015 and 2014:

	September 30, 2015	September 30, 2014
Weighted average assumptions:
Discount rate	4.25%	4.15%
Expected return on assets	5.94%	6.00%

The following weighted-average assumptions were used to determine net periodic pension cost for the years ended September 30, 2015, 2014, and 2013:

	Year Ended September 30,
	2015	2014	2013
Weighted average assumptions:
Discount rate	4.15%	4.60%	3.80%
Expected return on assets	6.00%	7.00%	7.00%

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic pension cost recognized in the consolidated income statements for the years ended September 30, 2015, 2014, and 2013 were as follows:

	Year Ended September 30,
(in millions)	2015			2014			2013
Interest cost	$	1.5		$	1.7		$	1.5
Less expected return on assets	(1.8		)	(2.0		)	(1.8		)
Net amortization and deferral	0.3			0.2			0.8
Net periodic pension cost	$	—		$	(0.1	)	$	0.5

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Other changes in plan assets and benefit obligations recognized in other comprehensive income for the years ended September 30, 2015 and 2014 were as follows:

	Year Ended September 30,
(in millions)	2015			2014
Net (gain) loss	$	2.4		$	1.4
Amortization of loss	(0.3		)	(0.2		)
Total recognized in other comprehensive income	2.1			1.2
Total recognized in net periodic benefit cost and other comprehensive income	$	2.1		$	1.1

Schedule of Allocation of Plan Assets [Table Text Block]

The following table sets forth the actual asset allocation as of September 30, 2015 and 2014, and the target asset allocation for the Company’s plan assets:

	September 30, 2015	September 30, 2014	Target Asset Allocation
Equity securities	33%	34%	35%
Debt securities	67%	66%	65%
Total	100%	100%

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following tables summarize the Company’s pension assets, excluding cash held in the plan, by major category of plan assets measured at fair value on a recurring basis (at least annually) as of September 30, 2015 and 2014. For additional information and a detailed description of each level within the fair value hierarchy, see Note 3.

	September 30, 2015
(in millions)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	—	$	0.6	$	—	$	0.6
Fixed income:
Government and agencies	—		—		—		—
Collective funds:
Fixed income	—		19.5		—		19.5
Equities	—		9.5		—		9.5
Real estate	—		0.6		—		0.6
Total	$	—	$	30.2	$	—	$	30.2

	September 30, 2014
(in millions)	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	—	$	1.0	$	—	$	1.0
Fixed income:
Government and agencies	—		—		—		—
Collective funds:
Fixed income	—		19.6		—		19.6
Equities	—		10.0		—		10.0
Real estate	—		0.6		—		0.6
Total	$	—	$	31.2	$	—	$	31.2

Schedule of Expected Benefit Payments [Table Text Block]

The following benefit payments, which reflect expected future service, are expected to be paid:

(in millions)
Year ending September 30,
2016	$	3.2
2017	2.9
2018	2.0
2019	1.9
2020	1.9
2021 - 2025	9.4
	$	21.3