Income Taxes

3 Months Ended

Mar. 31, 2012

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

Income Taxes

The income tax provision includes U.S. federal, state and local, and foreign income taxes and is based on the application of a forecasted annual income tax rate applied to the current quarter's year-to-date pre-tax income or loss. In determining the estimated annual effective income tax rate, the Company analyzes various factors, including projections of the Company's annual earnings, taxing jurisdictions in which the earnings will be generated, the impact of state and local income taxes, the Company's ability to use tax credits and net operating loss carryforwards, and available tax planning alternatives. Discrete items, including the effect of changes in tax laws, tax rates and certain circumstances with respect to valuation allowances or other unusual or non-recurring tax adjustments are reflected in the period in which they occur as an addition to, or reduction from, the income tax provision, rather than included in the estimated effective annual income tax rate.

A reconciliation of the Company's consolidated federal statutory and effective income tax is as follows:

	THREE MONTHS ENDED
	MARCH 31
	2012			2011
Income before income taxes:	$	33.7		$	87.0
Statutory taxes at 35%	$	11.8		$	30.5
Other permanent items:
NACoal percentage depletion	(1.3		)	(2.8		)
Foreign tax rate differential	(1.9		)	(3.8		)
Valuation allowance	(1.0		)	(1.5		)
Other	0.9			1.8
	(3.3		)	(6.3		)
Income tax provision	$	8.5		$	24.2
Effective income tax rate	25.2		%	27.8		%