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Revenues in Condensed Consolidated Statements of Operations from Arrangements for which Vendor-Specific Objective Evidence of Fair Value Does Not Exist for Each Undelivered Element (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Revenue Recognition, Milestone Method [Line Items] |  |  |  |  |  |  |  |  |  |  |
License | $ 94,230 | $ 50,237 | $ 67,161 | $ 39,577 | $ 80,425 | $ 57,653 | $ 61,377 | $ 35,702 | $ 251,205 | $ 235,157 | $ 233,931
Maintenance | 63,000 | 59,262 | 60,141 | 59,492 | 67,421 | 63,764 | 62,309 | 62,499 | 241,895 | 255,993 | 245,954
Services | 34,371 | 25,842 | 23,110 | 23,497 | 29,811 | 28,194 | 24,991 | 22,588 | 106,820 | 105,584 | 122,085
Total revenues | $ 308,637 | $ 238,701 | $ 265,822 | $ 232,817 | $ 290,224 | $ 249,644 | $ 254,808 | $ 221,473 | 1,045,977 | 1,016,149 | 864,928
Vendor Specific Objective Evidence of Fair Value [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue Recognition, Milestone Method [Line Items] |  |  |  |  |  |  |  |  |  |  |
License |  |  |  |  |  |  |  |  | 7,797 | 22,211 | 22,190
Maintenance |  |  |  |  |  |  |  |  | 3,801 | 7,699 | 9,649
Services |  |  |  |  |  |  |  |  | 321 | 13 | 10
Total revenues |  |  |  |  |  |  |  |  | $ 11,919 | $ 29,923 | $ 31,849

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- Definition Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. + References Reference 1: 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(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Revenue derived from maintenance services provided under contracts or arrangements with clients. For example, it may include the maintenance of software, plant and equipment, and facilities. + References Reference 1: 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=26872669&loc=d3e20235-122688 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: 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) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Revenue from providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software. + References Reference 1: 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=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 605 -Section 25 -Paragraph 76 -URI http://asc.fasb.org/extlink&oid=51674016&loc=d3e132428-111767 + Details
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