XML 57 R1.htm IDEA: XBRL DOCUMENT v3.20.2
Document and Entity Information
Nov. 09, 2020
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Nov. 09, 2020
Entity Registrant Name F5 NETWORKS, INC.
Entity Incorporation, State or Country Code WA
Entity File Number 000-26041
Entity Tax Identification Number 91-1714307
Entity Address, Address Line One 401 ELLIOTT AVENUE WEST
Entity Address, City or Town SEATTLE
Entity Address, State or Province WA
Entity Address, Postal Zip Code 98119
City Area Code 206
Local Phone Number 272-5555
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001048695
Title of 12(b) Security Common stock, no par value
Trading Symbol FFIV
Security Exchange Name NASDAQ