XML 46 R44.htm IDEA: XBRL DOCUMENT v2.4.1.9
Net Income Available to Common Stockholders (Detail) - Anti-Dilutive Securities Not Included In Diluted Shares Outstanding Calculation
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Stock options outstanding      
Weighted-average:      
Weighted-average anti-dilutive securities 767rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember		 1,215rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember		 2,672rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
Restricted stock units outstanding      
Weighted-average:      
Weighted-average anti-dilutive securities 100rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember		 127rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember		 395rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember
Shares of common stock subject to repurchase      
Weighted-average:      
Weighted-average anti-dilutive securities 0rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= rpxc_CommonStockSubjecttoRepurchaseMember		 25rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= rpxc_CommonStockSubjecttoRepurchaseMember		 649rpxc_WeightedAverageAntiDilutiveSecurities
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= rpxc_CommonStockSubjecttoRepurchaseMember