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Property and Equipment (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 32,191 | $ 31,154
Accumulated depreciation | (27,743) | (26,933)
Property and equipment—net | 4,448 | 4,221
Information technology |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 26,616 | 25,588
Information technology | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 2 years |
Information technology | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |
Leasehold improvements |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 4,568 | 4,568
Leasehold improvements | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 2 years |
Leasehold improvements | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |
Furniture and fixtures |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 1,007 | $ 998
Furniture and fixtures | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 2 years |
Furniture and fixtures | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 5 years |

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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