| Cover | Dec. 14, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 14, 2020 |
| Entity File Number | 001-33666 |
| Entity Registrant Name | ARCHROCK, INC. |
| Entity Central Index Key | 0001389050 |
| Entity Tax Identification Number | 74-3204509 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 9807 Katy Freeway |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77024 |
| City Area Code | 281 |
| Local Phone Number | 836-8000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.01 per share |
| Trading Symbol | AROC |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
