Akamai Foundation	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Akamai Foundation	Akamai FoundationThe Akamai Foundation is a private non-profit organization founded by certain current and former employees of the Company in 2000 (the “Foundation”). The Company has the right to appoint the directors of the Foundation, but receives no economic benefit from the Foundation’s initiatives, therefore the Foundation is not consolidated. The Foundation's initiatives are to support youth education, with a focus on mathematics and science, as well as other charitable causes. In 2020, the Foundation expanded its initiatives to include supporting increased diversity in the technology industry. In 2018, the Company contributed $50.0 million to establish a permanent endowment for the Foundation. In 2020, the Company contributed an additional $20.0 million in support of the Foundation's expanded initiatives. These expenses are included in general and administrative expenses in the consolidated statements of income in the years in which they were contributed.