XML 21 R47.htm IDEA: XBRL DOCUMENT

Income Taxes (Schedule of Income Tax Provision and Effective Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 48,586	$ 107	$ 116,446	$ 28,445
Effective tax rate	34.50%	0.20%	40.10%	18.30%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details

- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References+ Details