XML 49 R26.htm IDEA: XBRL DOCUMENT v2.4.1.9
Summary of Amortized Cost and Estimated Fair Value of Marketable Securities Available-for-Sale (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Amortized Cost  
Mature in one year or less $ 82,872us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
Mature after one year through two years 0us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
Total amortized cost 82,872us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Estimated Fair Value  
Mature in one year or less 82,881us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
Mature after one year through two years 0us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
Total estimated fair value $ 82,881us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate