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Segment Information - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
BASE24 |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of total revenues from licensing BASE24 product line | 21.00% | 21.00% | 28.00%
Customer Concentration Risk |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of revenues during the years ended December 31, 2015, 2014 and 2013 | No single customer accounted for more than 10% of the Company's consolidated revenues during the years ended December 31, 2015, 2014 and 2013. |  |
Geographic Concentration Risk |  |  |
Segment Reporting Information [Line Items] |  |  |
Percentage of revenues during the years ended December 31, 2015, 2014 and 2013 | No country outside of the United States accounted for more than 10% of the Company's consolidated revenues during the years ended December 31, 2015, 2014 and 2013. |  |

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- Definition Percentage of revenues derived from licensing the BASE24 product line, which does not include the BASE24-eps product, and providing related services and maintenance. + References No definition available. + Details
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- Definition Disclosure of the extent of enterprise reliance on its major customers. For example, includes revenues from transactions with a single external customer amounting to 10 percent or more of the entity's revenues, the total amount of revenues from each such customer, and the identity of the segment or segments reporting the revenues. A group of entities that the entity knows to be under common control generally will be considered a single customer for inclusion in this item. The federal government, a state government, a local government (for example, a county or municipality), or a foreign government each will generally be considered as a single customer for inclusion in this item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9054-108599 + Details
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