Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Nov. 30, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following tables summarize the activity in Accumulated other comprehensive income (loss), net of tax, by component for the periods indicated:

	Three months ended November 30, 2018
	Foreign currency translation adjustments			Retirement benefit plans			Total
Beginning balance at September 1, 2018	$	(45.0	)	$	(13.6	)	$	(58.6	)
Other comprehensive income (loss) before reclassifications	(0.6		)	—			(0.6		)
Less amount reclassified from Accumulated other comprehensive income (loss):
Amortization of gains and losses (net of tax of $0.0)	—			0.2			0.2
Postretirement benefit plan remeasurement (net of tax of $0.7)	—			2.0			2.0
Amortization of prior service credit (net of tax of $0.0)	—			(0.1		)	(0.1		)
Other reclassifications (net of tax of $0.2)	—			0.6			0.6
Other comprehensive income (loss)	(0.6		)	2.7			2.1
Ending balance at November 30, 2018	$	(45.6	)	$	(10.9	)	$	(56.5	)
	Three months ended November 30, 2017
	Foreign currency translation adjustments			Retirement benefit plans			Total
Beginning balance at September 1, 2017	$	(41.6	)	$	(48.4	)	$	(90.0	)
Other comprehensive income (loss) before reclassifications	0.1			—			0.1
Less amount reclassified from Accumulated other comprehensive income (loss):
Benefit from settlement (net of tax of $6.2)	—			9.2			9.2
Amortization of gains and losses (net of tax of $0.1)	—			0.4			0.4
Other reclassifications (net of tax of $0.5)	—			(0.6		)	(0.6		)
Other comprehensive income (loss)	0.1			9.0			9.1
Ending balance at November 31, 2017	$	(41.5	)	$	(39.4	)	$	(80.9	)

	Six months ended November 30, 2018
	Foreign currency translation adjustments			Retirement benefit plans			Total
Beginning balance at June 1, 2018	$	(41.9	)	$	(13.8	)	$	(55.7	)
Other comprehensive income (loss) before reclassifications	(3.7		)	—			(3.7		)
Less amount reclassified from Accumulated other comprehensive income (loss):
Amortization of gains and losses (net of tax of $0.0)	—			0.4			0.4
Postretirement benefit plan remeasurement (net of tax of $0.7)	—			2.0			2.0
Amortization of prior service credit (net of tax of $0.0)	—			(0.1		)	(0.1		)
Other reclassifications (net of tax of $0.2)	—			0.6			0.6
Other comprehensive income (loss)	(3.7		)	2.9			(0.8		)
Ending balance at November 30, 2018	$	(45.6	)	$	(10.9	)	$	(56.5	)
	Six months ended November 30, 2017
	Foreign currency translation adjustments			Retirement benefit plans			Total
Beginning balance at June 1, 2017	$	(45.3	)	$	(48.9	)	$	(94.2	)
Other comprehensive income (loss) before reclassifications	3.8			—			3.8
Less amount reclassified from Accumulated other comprehensive income (loss):
Benefit from settlement (net of tax of $6.2)	—			9.2			9.2
Amortization of gains and losses (net of tax of $0.2)	—			0.9			0.9
Other reclassifications (net of tax of $0.5)	—			(0.6		)	(0.6		)
Other comprehensive income (loss)	3.8			9.5			13.3
Ending balance at November 31, 2017	$	(41.5	)	$	(39.4	)	$	(80.9	)

Reclassification out of Accumulated Other Comprehensive Income

The following table presents the impact on earnings of reclassifications out of Accumulated other comprehensive income (loss) for the periods indicated:

	Three months ended November 30,						Six months ended November 30,						Condensed consolidated statements of operations line item
	2018			2017			2018			2017
Employee benefit plans:
Amortization of unrecognized (gain) loss	$	0.2		$	0.6		0.4			1.2			Other components of net periodic benefit (cost)
Settlement charge	—			15.4			—			15.4			Other components of net periodic benefit (cost)
Amortization of prior service credit	(0.1		)	—			(0.1		)	—			Other components of net periodic benefit (cost)
Less: Tax effect	0.0			(6.3		)	0.0			(6.4		)	(Provision) benefit for income taxes
Total cost, net of tax	$	0.1		$	9.7		$	0.3		$	10.2