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Segment and Geographic Information (Details 1) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Information about geographic areas |  |  |
Product revenue | $ 297,310 | $ 263,463 | $ 158,379
Service revenue | 24,604 | 27,228 | 17,348
Long-lived assets | 135,710 | 136,489 | 149,239
United States [Member] |  |  |
Information about geographic areas |  |  |
Product revenue | 98,833 | 83,128 | 53,803
Service revenue | 10,965 | 12,702 | 6,657
Long-lived assets | 121,178 | 122,765 | 127,317
Europe [Member] |  |  |
Information about geographic areas |  |  |
Product revenue | 100,984 | 83,432 | 54,559
Service revenue | 6,343 | 7,611 | 5,261
Long-lived assets | 10,811 | 10,387 | 19,617
Japan [Member] |  |  |
Information about geographic areas |  |  |
Product revenue | 45,295 | 55,269 | 30,674
Service revenue | 4,147 | 3,986 | 3,513
Long-lived assets | 2,773 | 2,457 | 2,037
Other [Member] |  |  |
Information about geographic areas |  |  |
Product revenue | 52,198 | 41,634 | 19,343
Service revenue | 3,149 | 2,929 | 1,917
Long-lived assets | $ 948 | $ 880 | $ 268

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph b(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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