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v2.4.1.9

Income taxes Significant components of Income tax expense (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
U.S. federal current expense (benefit) | $ (112)us-gaap_CurrentFederalTaxExpenseBenefit | $ 532 us-gaap_CurrentFederalTaxExpenseBenefit | $ (161)us-gaap_CurrentFederalTaxExpenseBenefit
State current expense (benefit) | 2,252 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | (445)us-gaap_CurrentStateAndLocalTaxExpenseBenefit | (669)us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign current expense | 15,098 us-gaap_CurrentForeignTaxExpenseBenefit | 6,198 us-gaap_CurrentForeignTaxExpenseBenefit | 9,808 us-gaap_CurrentForeignTaxExpenseBenefit
Total current expense | 17,238 us-gaap_CurrentIncomeTaxExpenseBenefit | 6,285 us-gaap_CurrentIncomeTaxExpenseBenefit | 8,978 us-gaap_CurrentIncomeTaxExpenseBenefit
U.S. federal deferred benefit | (1,696)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (3,905)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (1,564)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State deferred benefit | (12)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (207)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 0 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign deferred tax expense | 2,778 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 958 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 1,496 us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total deferred benefit | 1,070 us-gaap_DeferredIncomeTaxExpenseBenefit | (3,154)us-gaap_DeferredIncomeTaxExpenseBenefit | (68)us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax expense | $ 18,308 us-gaap_IncomeTaxExpenseBenefit | $ 3,131 us-gaap_IncomeTaxExpenseBenefit | $ 8,910 us-gaap_IncomeTaxExpenseBenefit

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- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: 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 + Details
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