Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Reconciliation of Beginning and Ending Liability for Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of the liability for unrecognized tax benefits is as follows:

($ in millions)	2013			2012
Balance at January 1	$	6.8		$	6.3
Additions for tax positions taken in the current year	1.7			0.7
Reduction for expiration of statute of limitations/audits	(1.4		)	(0.2		)
Balance at December 31	$	7.1		$	6.8

Schedule of Components of Income Before Income Taxes

The components of income before income taxes are:

($ in millions)	2013		2012		2011
U.S. operations	$	28.9	$	8.9	$	15.8
International operations	118.2		99.7		76.9
Total income before income taxes	$	147.1	$	108.6	$	92.7

Schedule of Components of Income Tax Expense

The related provision for income taxes consists of:

($ in millions)	2013			2012		2011
Current:
Federal	$	—		$	—	$	—
State	0.3			0.2		—
International	38.2			27.2		20.6
Current income tax provision	38.5			27.4		20.6
Deferred:
Federal and state	9.2			3.3		2.7
International	(7.5		)	2.0		0.2
Deferred income tax provision	1.7			5.3		2.9
Income tax expense	$	40.2		$	32.7	$	23.5

Schedule of Deferred Tax Assets and Liabilities

The significant components of our deferred tax assets and liabilities at December 31 are:

($ in millions)	2013			2012
Deferred tax assets
Net operating loss carryforwards	$	20.7		$	21.1
Tax credit carryforwards	36.1			37.0
Restructuring and impairment charges	0.1			0.3
Pension and deferred compensation	51.2			69.8
Other	19.8			15.1
Valuation allowance	(23.5		)	(20.4		)
Total deferred tax assets	104.4			122.9
Deferred tax liabilities:
Accelerated depreciation	40.5			42.8
Other	5.4			3.9
Total deferred tax liabilities	45.9			46.7
Net deferred tax asset	$	58.5		$	76.2

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the U.S. federal corporate tax rate to our effective consolidated tax rate on income before income taxes follows:

	2013		2012		2011
U.S. federal corporate tax rate	35.0	%	35.0	%	35.0	%
Tax on international operations less than U.S. tax rate	(5.3	)	(5.9	)	(8.2	)
Non-benefited losses	—		0.6		—
Reversal of prior valuation allowance	(1.0	)	—		(0.1	)
Reversal of reserves for unrecognized tax benefits	(0.8	)	(0.2	)	(0.8	)
U.S. tax on international earnings, net of foreign tax credits	0.1		(1.2	)	(1.5	)
State income taxes, net of federal tax effect	0.1		(1.0	)	0.7
U.S. research and development credits	(1.8	)	—		(1.1	)
Other business credits and Section 199 Deduction	(0.5	)	(1.0	)	(1.3	)
Non-deductible debt premium	—		2.0		—
Other	1.6		1.9		2.6
Effective tax rate	27.4	%	30.2	%	25.3	%