Cover Page
Cover Page - USD ($) $ in Millions | 12 Months Ended | ||
Dec. 31, 2019 | Jun. 05, 2020 | Jun. 30, 2019 | |
Cover page. | |||
Document Type | 10-K/A | ||
Document Annual Report | true | ||
Document Period End Date | Dec. 31, 2019 | ||
Document Transition Report | false | ||
Entity File Number | 001-34112 | ||
Entity Registrant Name | Energy Recovery, Inc. | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Tax Identification Number | 01-0616867 | ||
Entity Address, Address Line One | 1717 Doolittle Drive | ||
Entity Address, City or Town | San Leandro | ||
Entity Address, State or Province | CA | ||
Entity Address, Postal Zip Code | 94577 | ||
City Area Code | 510 | ||
Local Phone Number | 483-7370 | ||
Title of 12(b) Security | Common Stock, $0.001 par value per share | ||
Trading Symbol | ERII | ||
Security Exchange Name | NASDAQ | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 389 | ||
Entity Common Stock, Shares Outstanding | 55,656,196 | ||
Entity Central Index Key | 0001421517 | ||
Current Fiscal Year End Date | --12-31 | ||
Document Fiscal Year Focus | 2019 | ||
Document Fiscal Period Focus | FY | ||
Amendment Flag | false | ||
Documents Incorporated by Reference | DOCUMENTS INCORPORATED BY REFERENCE |