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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2014
Goodwill [Line Items] |
Schedule of Goodwill [Table Text Block] | The change in the carrying amount of goodwill for the years ended December 31, 2014 and 2013, was as follows (in thousands):
Balance as of December 31, 2012 | $ | — |
Goodwill acquired | 7,024 |
Balance as of December 31, 2013 | 7,024 |
Goodwill acquired | 15,717 |
Purchase accounting adjustments | 151 |
Foreign currency translation adjustments | (1,329 | )
Balance as of December 31, 2014 | $ | 21,563 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | Intangible assets consisted of the following as of December 31, (in thousands):
|  |  | December 31, 2013
| Weighted average useful life (years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Developed technology | 7 |  | $ | 4,600 |  |  | $ | 27 |  |  | $ | 4,573 |
Internally developed technology | 2 |  | 160 |  |  | 3 |  |  | 157 |
Customer relationships | 8 |  | 3,500 |  |  | 37 |  |  | 3,463 |
Trade name | 2 |  | 40 |  |  | 1 |  |  | 39 |
Total |  |  | $ | 8,300 |  |  | $ | 68 |  |  | $ | 8,232 |
|  |  | December 31, 2014
| Weighted average useful life (years) |  | Gross Carrying Amount |  | Accumulated Amortization* |  | Net Carrying Amount
Developed technology | 7 |  | $ | 14,567 |  |  | $ | 2,082 |  |  | $ | 12,485 |
Internally developed technology and other | 2 |  | 1,254 |  |  | 620 |  |  | 634 |
Maintenance Relationship | 8 |  | 3,591 |  |  | 788 |  |  | 2,803 |
Customer relationships | 7 |  | 4,853 |  |  | 1,399 |  |  | 3,454 |
Trade name | 8 |  | 952 |  |  | 133 |  |  | 819 |
Total |  |  | $ | 25,217 |  |  | $ | 5,022 |  |  | $ | 20,195 |
*Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, decreased total intangible assets by approximately $1.5 million as of December 31, 2014. Customer relationships are amortized over a period ranging from two to eight years. Trade names are amortized over a period ranging from two to eight years.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | As of December 31, 2014, the expected future amortization expense for the acquired intangible assets for each of the five succeeding years and thereafter was as follows (in thousands):
Year Ending December 31, |  | Amount
2015 |  | $ | 4,429 |
2016 |  | 3,254 |
2017 |  | 3,000 |
2018 |  | 3,000 |
2019 |  | 2,873 |
Thereafter |  | 3,639 |
Total amortization expense |  | $ | 20,195 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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