Income Tax (Notes)

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

Income Tax

Provision for income tax expense differed from the amounts computed by applying the U.S. federal income tax statutory rate of 35% to pre-tax income as a result of the following (dollars in thousands):

	Three months ended March 31,
	2014			2013
Tax provision at U.S. statutory rate	$	69,804		$	97,589
Increase (decrease) in income taxes resulting from:
Foreign tax rate differing from U.S. tax rate	(3,221		)	(2,388		)
Differences in tax basis in foreign jurisdictions	250			900
Deferred tax valuation allowance	(3,157		)	(22		)
Amounts related to tax audit contingencies	778			1,099
Corporate rate changes	(17		)	(1,371		)
Subpart F	2,439			465
Foreign tax credits	(855		)	(670		)
Return to provision adjustments	(3,353		)	(2,484		)
Other, net	108			174
Total provision for income taxes	$	62,776		$	93,292
Effective tax rate	31.5		%	33.5		%

During the quarter ended March 31, 2014, the company released a valuation allowance on tax benefits associated with claims experience on certain treaties, which was partially offset by a tax accrual related to the Active Financing Exception business extender provision that the U.S. Congress did not pass prior to the end of the quarter.