XML 26 R73.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stock-Based Compensation - Schedule of Restricted Stock Units by Type (Details)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Total restricted stock units vesting conditions granted 2,524akam_RestrictedStockUnitsVestingConditionsServiceAndPerformanceBasedGrantedTotal 3,098akam_RestrictedStockUnitsVestingConditionsServiceAndPerformanceBasedGrantedTotal 3,151akam_RestrictedStockUnitsVestingConditionsServiceAndPerformanceBasedGrantedTotal
Service-based restricted stock units      
Restricted stock units vesting conditions granted 1,949akam_RestrictedStockUnitsGrantedWithServiceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsServiceBasedMember		 2,338akam_RestrictedStockUnitsGrantedWithServiceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsServiceBasedMember		 2,782akam_RestrictedStockUnitsGrantedWithServiceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsServiceBasedMember
Performance-based restricted stock units      
Restricted stock units granted with performance based vesting 575akam_RestrictedStockUnitsGrantedWithPerformanceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsPerformanceBasedMember		 760akam_RestrictedStockUnitsGrantedWithPerformanceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsPerformanceBasedMember		 369akam_RestrictedStockUnitsGrantedWithPerformanceBasedVesting
/ us-gaap_AwardTypeAxis
= akam_RestrictedStockUnitsPerformanceBasedMember