Document and Entity Information
Document and Entity Information - shares | 9 Months Ended | |
Sep. 30, 2019 | Oct. 31, 2019 | |
Document And Entity Information [Abstract] | ||
Document Type | 10-Q/A | |
Document Quarterly Report | true | |
Document Period End Date | Sep. 30, 2019 | |
Document Transition Report | false | |
Entity File Number | 001-36473 | |
Entity Registrant Name | Trinseo S.A. | |
Entity Incorporation, State or Country Code | N4 | |
Entity Tax Identification Number | 00-0000000 | |
Entity Address, Address Line One | 1000 Chesterbrook Boulevard | |
Entity Address, Address Line Two | Suite 300 | |
Entity Address, City or Town | Berwyn | |
Entity Address, State or Province | PA | |
Entity Address, Postal Zip Code | 19312 | |
City Area Code | 610 | |
Local Phone Number | 240-3200 | |
Title of 12(b) Security | Ordinary Shares, par value $0.01 per share | |
Trading Symbol | tse | |
Security Exchange Name | NYSE | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Large Accelerated Filer | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Common Stock, Shares Outstanding | 39,179,801 | |
Document Fiscal Year Focus | 2019 | |
Document Fiscal Period Focus | Q3 | |
Entity Central Index Key | 0001519061 | |
Current Fiscal Year End Date | --12-31 | |
Amendment Flag | false |