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FibroGen, Inc. 401(k) Plan | 12 Months Ended
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Dec. 31, 2017
Compensation And Retirement Disclosure [Abstract] |
FibroGen, Inc. 401(k) Plan |
11. | FibroGen, Inc. 401(k) Plan
Substantially all of the Company’s full-time United States of America-based employees are eligible to make contributions to the Company’s 401(k) Plan. Under this plan, participating employees may defer up to 60% of their pretax salary during the year, but not more than statutory limits. The Company may elect to match employee contributions. Matching contributions of $2.5 million, $2.3 million and $2.5 million were made during years ended December 31, 2017, 2016 and 2015, respectively.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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