Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Sep. 30, 2019

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of changes in accumulated other comprehensive income (loss) by component

	Pension and Postretirement			Currency Translation			Net Unrealized Gain (Loss) on Derivative Instruments			Total Attributable to Hillenbrand, Inc.			Noncontrolling Interests			Total
Balance at September 30, 2017	$	(45.3	)	$	(36.9	)	$	1.0		$	(81.2	)
Other comprehensive income before reclassifications
Before tax amount	1.8			(7.2		)	1.8			(3.6		)	$	(0.7	)	$	(4.3	)
Tax expense	(0.5		)	—			(0.6		)	(1.1		)	—			(1.1		)
After tax amount	1.3			(7.2		)	1.2			(4.7		)	(0.7		)	(5.4		)
Amounts reclassified from accumulated other comprehensive income (loss)(1)	3.0			—			(1.3		)	1.7			—			1.7
Net current period other comprehensive income (loss)	4.3			(7.2		)	(0.1		)	(3.0		)	$	(0.7	)	$	(3.7	)
Balance at September 30, 2018	$	(41.0	)	$	(44.1	)	$	0.9		$	(84.2	)

(1)  Amounts are net of tax.

	Pension and Postretirement			Currency Translation			Net Unrealized Gain (Loss) on Derivative Instruments			Total Attributable to Hillenbrand, Inc.			Noncontrolling Interests		Total
Balance at September 30, 2018	$	(41.0	)	$	(44.1	)	$	0.9		$	(84.2	)
Other comprehensive income before reclassifications
Before tax amount	(30.7		)	(20.6		)	(20.6		)	(71.9		)	$	—	$	(71.9	)
Tax benefit	8.2			—			1.6			9.8			—		9.8
After tax amount	(22.5		)	(20.6		)	(19.0		)	(62.1		)	—		(62.1		)
Amounts reclassified from accumulated other comprehensive income (loss)(1)	1.2			—			4.5			5.7			—		5.7
Net current period other comprehensive income (loss)	(21.3		)	(20.6		)	(14.5		)	(56.4		)	$	—	$	(56.4	)
Balance at September 30, 2019	$	(62.3	)	$	(64.7	)	$	(13.6	)	$	(140.6	)

(1)  Amounts are net of tax.

	Pension and Postretirement			Currency Translation			Net Unrealized Gain (Loss) on Derivative Instruments			Total Attributable to Hillenbrand, Inc.			Noncontrolling Interests		Total
Balance at September 30, 2016	$	(67.5	)	$	(61.6	)	$	(0.7	)	$	(129.8	)
Other comprehensive income before reclassifications
Before tax amount	28.1			24.7			3.2			56.0			$	0.2	$	56.2
Tax expense	(9.3		)	—			(1.2		)	(10.5		)	—		(10.5		)
After tax amount	18.8			24.7			2.0			45.5			0.2		45.7
Amounts reclassified from accumulated other comprehensive income (loss)(1)	3.4			—			(0.3		)	3.1			—		3.1
Net current period other comprehensive loss	22.2			24.7			1.7			48.6			$	0.2	$	48.8
Balance at September 30, 2017	$	(45.3	)	$	(36.9	)	$	1.0		$	(81.2	)

(1)  Amounts are net of tax.

Schedule of reclassifications out of accumulated other comprehensive income

	Year Ended September 30, 2018
	Amortization of Pension and Postretirement (1)				(Gain)/Loss on Derivative Instruments
	Net Loss Recognized		Prior Service Costs Recognized					Total
Affected Line in the Consolidated Statement of Income:
Net revenue	$	—	$	—	$	0.5		$	0.5
Cost of goods sold	—		—		(0.1		)	(0.1		)
Other (expense) income, net	3.6		0.2		(2.3		)	1.5
Total before tax	$	3.6	$	0.2	$	(1.9	)	1.9
Tax benefit								(0.2		)
Total reclassifications for the period, net of tax								$	1.7

(1) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Note 6).

	Year Ended September 30, 2017
	Amortization of Pension and Postretirement (1)				(Gain)/Loss on Derivative Instruments
	Net Loss Recognized		Prior Service Costs Recognized					Total
Affected Line in the Consolidated Statement of Income:
Net revenue	$	—	$	—	$	(0.1	)	$	(0.1	)
Cost of goods sold	—		—		(0.5		)	(0.5		)
Other (expense) income, net	4.6		0.4		0.1			5.1
Total before tax	$	4.6	$	0.4	$	(0.5	)	4.5
Tax benefit								(1.4		)
Total reclassifications for the period, net of tax								$	3.1

(1) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension cost (see Note 6).

Reclassifications out of Accumulated other comprehensive income (loss) include:

	Year Ended September 30, 2019
	Amortization of Pension and  Postretirement (1)				(Gain)/Loss on Derivative Instruments
	Net Loss Recognized		Prior Service Costs Recognized					Total
Affected Line in the Consolidated Statement of Income:
Net revenue	$	—	$	—	$	0.2		$	0.2
Cost of goods sold	—		—		(0.8		)	(0.8		)
Other (expense) income, net	1.7		—		6.5			8.2
Total before tax	$	1.7	$	—	$	5.9		7.6
Tax benefit								(1.9		)
Total reclassifications for the period, net of tax								$	5.7

(1) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension cost (see Note 6).