Accumulated Other Comprehensive (Loss) Income Accumulated Other Comprehensive (Loss) Income (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

	Quarter Ended
	March 31,
	2017			2016
Salaried VEBA and defined benefit pension plan:
Beginning balance	$	(37.1	)	$	(31.3	)
Amortization of net actuarial loss1	0.2			0.1
Amortization of prior service cost1	1.2			1.0
Less: income tax expense2	(0.5		)	(0.4		)
Net amortization reclassified from AOCI to Net income	0.9			0.7
Translation impact on Canadian pension plan AOCI balance	—			0.1
Other comprehensive income, net of tax	0.9			0.8
Ending balance	$	(36.2	)	$	(30.5	)
Available for sale securities:
Beginning balance	$	0.8		$	(0.1	)
Unrealized gain on available for sale securities	1.1			—
Less: income tax expense	(0.4		)	—
Net unrealized gain on available for sale securities	0.7			—
Reclassification of unrealized gain upon sale of available for sale securities3	(0.9		)	—
Less: income tax benefit2	0.3			—
Net unrealized gain reclassified from AOCI to Net income	(0.6		)	—
Other comprehensive income, net of tax	0.1			—
Ending balance	$	0.9		$	(0.1	)
Foreign currency cash flow hedges:
Beginning balance	$	(0.1	)	$	(0.2	)
Unrealized gain on foreign currency cash flow hedges	—			0.2
Less: income tax benefit	—			(0.1		)
Net unrealized gain on foreign currency cash flow hedges	—			0.1
Unrealized loss reclassified from AOCI to Net income4	0.2			—
Less: income tax expense2	(0.1		)	—
Net unrealized loss reclassified from AOCI to Net income	0.1			—
Other comprehensive income, net of tax	0.1			0.1
Ending balance	$	—		$	(0.1	)

	Quarter Ended
	March 31,
	2017			2016
Alloy Hedges:
Beginning balance	$	(0.1	)	$	—
Unrealized gain on Alloy Hedges	0.3			—
Less: income tax expense	(0.1		)	—
Net unrealized gain on Alloy Hedges	0.2			—
Other comprehensive income, net of tax	0.2			—
Ending balance	$	0.1		$	—
Foreign currency translation:
Beginning balance	$	(0.2	)	$	(0.1	)
(Loss) gain on foreign currency translation	—			—
Less: income tax (expense) benefit	—			—
Other comprehensive (loss) income, net of tax	—			—
Ending balance	$	(0.2	)	$	(0.1	)
Total AOCI ending balance	$	(35.4	)	$	(30.8	)