Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Intangible Assets - Additional Information (Detail)

v2.4.1.9
Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]      
Payments to acquire domain names and other intangible assets $ 260,000us-gaap_PaymentsToAcquireIntangibleAssets $ 927,000us-gaap_PaymentsToAcquireIntangibleAssets $ 3,375,000us-gaap_PaymentsToAcquireIntangibleAssets
Amortization of finite-lived intangible assets 20,700,000us-gaap_AmortizationOfIntangibleAssets 16,600,000us-gaap_AmortizationOfIntangibleAssets 18,300,000us-gaap_AmortizationOfIntangibleAssets
Domain Names and Other Intangibles      
Finite-Lived Intangible Assets [Line Items]      
Payments to acquire domain names and other intangible assets 1,100,000us-gaap_PaymentsToAcquireIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= rp_BrandAndDomainNamesAndOtherIntangiblesMember
900,000us-gaap_PaymentsToAcquireIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= rp_BrandAndDomainNamesAndOtherIntangiblesMember
 
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Impairment of indefinite lived asset $ 300,000us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember