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Income Taxes (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Reconciliation between the U.S. federal statutory tax rate and effective tax rate |  |  |  |
Statutory rate | 35.00% | 35.00% | 35.00% | 35.00%
State taxes | 0.40% | 1.10% | 0.00% | 1.10%
Taxes on foreign earnings | (11.10%) | (8.70%) | (9.80%) | (8.50%)
Credits and net operating loss utilization | 0.70% | 0.70% | 0.70% | 0.90%
Purchased intangible assets | 1.10% | 1.20% | 1.00% | 1.30%
Manufacturing deduction | (2.10%) | (1.70%) | (1.80%) | (1.80%)
Permanent items | 0.90% | 0.40% | 0.70% | 0.40%
Other | 0.40% | 0.40% | 0.30% | 0.30%
Effective tax rate | 23.90% | 27.00% | 24.70% | 26.90%

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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