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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Valuation Allowance [Line Items] |  |  |  |  |
Deferred Tax Assets, Gross | $ 219,500 |  | $ 219,500 |  |
Deferred Tax Assets, Valuation Allowance | 26,200 |  | 26,200 |  |
Provision for (benefit from) income taxes | 2,507 | $ 6,107 | 9,883 | $ 10,624 |
Unrecognized tax benefits | 22,900 |  | 22,900 |  | $ 21,900
Portion of unrecognized tax benefits, which if recognized, would be recorded as an income tax benefit | 2,200 |  | 2,200 |  |
Unrecognized tax benefits included in long-term income taxes payable | 2,200 |  | 2,200 |  | 2,200
Unrecognized tax benefits, reduction of long-term deferred tax assets | 20,700 |  | 20,700 |  | $ 19,700
Foreign Tax Authority [Member] |  |  |  |  |
Valuation Allowance [Line Items] |  |  |  |  |
Income Taxes Paid | $ 5,400 | $ 5,400 | $ 10,900 | $ 10,900 |

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- Definition Represents the amount of unrecognized tax benefits which pertained to uncertain tax positions taken in tax returns and was recorded as a reduction of long-term deferred tax assets as of the balance sheet date, prior to reduction for federal tax benefit. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 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 FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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