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Deferred Revenue-Right-to-use contracts and Deferred commission expense - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Movement in Deferred Revenue [Roll Forward] |  |  |  |
Deferred revenue - right-to-use contracts, as of January 1 |  |  | $ 74,174 | $ 68,673
Right-to-use contracts current period, gross | $ 3,578 | $ 3,263 | 6,375 | 6,344
Revenue recognized from right-to-use contract upfront payments |  |  | (4,147) | (4,029)
Right-to-use contract upfront payments, deferred, net |  |  | 2,228 | 2,315
Deferred revenue - right-to-use contracts, as of June 30 | 76,402 | 70,988 | 76,402 | 70,988
Movement in Deferred Costs [Roll Forward] |  |  |  |
Deferred commission expense, as of January 1 |  |  | 28,589 | 25,251
Deferred commission expense |  |  | 3,067 | 2,652
Commission expense recognized |  |  | (1,696) | (1,318)
Net increase in deferred commission expense |  |  | 1,371 | 1,334
Deferred commission expense, as of June 30 | $ 29,960 | $ 26,585 | $ 29,960 | $ 26,585

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- Definition Commission expense recognized related to right-to-use contract sales. + References No definition available. + Details
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- Definition Upfront payments received from right to use contracts. The contracts give members the right to use certain properties on a continuous basis up to 21 days. + References No definition available. + Details
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- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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