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Income Tax Income Tax | 9 Months Ended
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Sep. 30, 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 for the three and nine months ended September 30, 2014 and 2013 (dollars in thousands):
|  | Three months ended September 30, |  | Nine months ended September 30,
|  | 2014 |  | 2013 |  | 2014 |  | 2013
Tax provision at U.S. statutory rate |  | $ | 81,135 |  |  | $ | 70,593 |  |  | $ | 256,126 |  |  | $ | 142,017 |
Increase (decrease) in income taxes resulting from: |  |  |  |  |  |  |  |
Foreign tax rate differing from U.S. tax rate |  | (3,645 | ) |  | (4,562 | ) |  | (11,715 | ) |  | (6,603 | )
Differences in tax basis in foreign jurisdictions |  | (413 | ) |  | 12,508 |  |  | (3,727 | ) |  | 1,302 |
Deferred tax valuation allowance |  | 326 |  |  | (9,850 | ) |  | (322 | ) |  | 478 |
Amounts related to tax audit contingencies |  | (2,083 | ) |  | 1,054 |  |  | (527 | ) |  | 1,946 |
Corporate rate changes |  | (26 | ) |  | (925 | ) |  | (386 | ) |  | (645 | )
Subpart F |  | 4,426 |  |  | (3,060 | ) |  | 10,555 |  |  | 3,226 |
Foreign tax credits |  | (1,558 | ) |  | 3,344 |  |  | (3,568 | ) |  | (172 | )
Return to provision adjustments |  | (4,794 | ) |  | (5,265 | ) |  | (8,031 | ) |  | (9,377 | )
Other, net |  | 451 |  |  | (97 | ) |  | 429 |  |  | (286 | )
Total provision for income taxes |  | $ | 73,819 |  |  | $ | 63,740 |  |  | $ | 238,834 |  |  | $ | 131,886 |
Effective tax rate |  | 31.8 | % |  | 31.6 | % |  | 32.6 | % |  | 32.5 | %

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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