Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Income Tax (Benefit) Expense Computed at Federal Statutory Tax Rate to Actual Income Tax (Benefit) Expense (Detail)

v2.4.1.9
Income Taxes - Reconciliation of Income Tax (Benefit) Expense Computed at Federal Statutory Tax Rate to Actual Income Tax (Benefit) Expense (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]      
Expense derived by applying the Federal income tax rate to (loss) income before taxes $ (5,813)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ 7,169us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate $ 3,291us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State income tax, net of federal benefit (177)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 607us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 445us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Foreign income tax (477)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (170)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (55)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Change in valuation allowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (9,087)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 0us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Benefit of assets not previously recognized (516)rp_IncreaseDecreaseOfDeferredTaxAssetForUnrecognizedTaxBenefits 0rp_IncreaseDecreaseOfDeferredTaxAssetForUnrecognizedTaxBenefits 0rp_IncreaseDecreaseOfDeferredTaxAssetForUnrecognizedTaxBenefits
Nondeductible expenses 454us-gaap_IncomeTaxReconciliationNondeductibleExpense 644us-gaap_IncomeTaxReconciliationNondeductibleExpense 612us-gaap_IncomeTaxReconciliationNondeductibleExpense
Fair value adjustment on stock acquisition (28)rp_EffectiveIncomeTaxRateReconciliationFairValueAdjustmentonStockAcquisition 487rp_EffectiveIncomeTaxRateReconciliationFairValueAdjustmentonStockAcquisition (251)rp_EffectiveIncomeTaxRateReconciliationFairValueAdjustmentonStockAcquisition
Stock-based compensation 223us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 139us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 171us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Other 1us-gaap_IncomeTaxReconciliationOtherAdjustments 1us-gaap_IncomeTaxReconciliationOtherAdjustments 6us-gaap_IncomeTaxReconciliationOtherAdjustments
Total income tax provision (benefit) $ (6,333)us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ (210)us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ 4,219us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations