| Form N-CSR Cover | 12 Months Ended |
| Sep. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Advisers Investment Trust |
| Entity Central Index Key | 0001516523 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Sep. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Advisers Investment Trust |
| Entity Central Index Key | 0001516523 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| C000152732 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | River CanyonTotal Return Bond Fund |
| Class Name | Institutional Shares |
| Trading Symbol | RCTIX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the River Canyon Total Return Bond Fund (the “Fund”) for the period of October 1, 2023 to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at rivercanyonfunds.com/documents/ |
| Additional Information Phone Number | 800-245-0371 (toll free) or 312-557-0164 |
| Additional Information Website | rivercanyonfunds.com/documents/ |
| Expenses [Text Block] | What were the Fund expenses for the last year? (Based on a hypothetical $10,000 investment) Fund (Class) Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment River Canyon Total Return Bond Fund $ 0.65 % |
| Expenses Paid, Amount | $ 69 |
| Expense Ratio, Percent | 0.65% |
| Factors Affecting Performance [Text Block] | Management’s Discussion of Fund Performance The Fund outperformed its benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, over the fiscal year, returning 12.13% net of fees, vs. the benchmark return of 11.57%. The Fund's relative outperformance to its benchmark was driven by the Fund's focus on security selection, maintaining exposure to higher yielding, shorter duration securities with diverse underlying collateral, and active allocation across credit sectors to optimize relative value. The Fund enjoyed strong inflows during the year, and the portfolio management team opportunistically deployed this capital across various fixed-income sectors, focusing on unique corporate and asset-backed securities. Most of the Fund's sector exposures produced positive returns during the year, with the primary contributors to performance being the Fund's exposure to Corporate, Asset-Backed, and non-agency Residential Mortgage Backed securities. Key Sector Exposure and Attribution Exposure to credit sectors drove the Fund’s outperformance relative to its benchmark over the reporting period, most notably fund exposure to U.S. corporate, asset backed, residential mortgage backed, and municipal securities drove this outperformance. Asset class hedges detracted from performance. Portfolio Sector Starting Allocation Ending Allocation Change in Allocation Gross Return Contribution Asset Backed 33 % 34 % 1 % 2.77 % Collateralized Loan Obligations 2 % 2 % 0 % 0.32 % Commercial Mortgaged Backed 6 % 2 % -4 % 0.49 % Corporate 32 % 35 % 3 % 4.53 % Municipal 4 % 4 % 0 % 1.20 % RMBS – Agency 5 % 5 % 0 % 1.71 % RMBS non- Agency 13 % 9 % -4 % 1.95 % US Treasury 0 % 3 % 3 % 0.47 % Other 5 % 6 % 1 % -0.62 % Fund Allocation Analysis The Fund maintained a tactical duration focus on the shorter end of the yield curve, given more attractive yield levels and to reduce the Fund’s exposure to movements in interest rates. The Fund’s strategic allocation throughout the year Corporate Credit and Asset Back Securities, played a key role in the Fund’s performance as these two sectors were the primary drivers of positive returns. The Funds exposure to non-Agency Residential Mortgages and Commercial Mortgage-Backed securities was reduced via paydowns and sales. |
| Performance Past Does Not Indicate Future [Text] | The performance data quoted represents past performance; past performance does not guarantee future results. |
| Line Graph [Table Text Block] | Fund Performance The following graph and chart compare the initial and subsequent account values at the end of each of the completed fiscal years of the Institutional Shares of the Fund since its inception on December 30, 2014. It assumes a $100,000 initial investment at inception in an appropriate, broad-based securities market index for the same period. GROWTH OF $100,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 year 5 year Since River Canyon Total Return Bond Fund (Institutional Shares/RCTIX) 12.13 % 4.73 % 5.61 % Bloomberg U.S. Aggregate Bond Index 11.57 % 0.33 % 1.71 % |
| Performance Inception Date | Dec. 30, 2014 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Updated Performance Information Location [Text Block] | Visit rivercanyonfunds.com/documents/ |
| Net Assets | $ 912,486,036 |
| Holdings Count | Holding | 170 |
| Advisory Fees Paid, Amount | $ 3,112,862 |
| Investment Company Portfolio Turnover | 63.11% |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS Fund net assets $ Total number of portfolio holdings 170 Total advisory fees paid $ Portfolio turnover rate as of the end of the reporting period 63.11 % |
| Holdings [Text Block] | PORTFOLIO DIVERSIFICATION AS A % OF NET ASSETS Asset-Backed Securities 39.1 % Mortgage-Backed Securities 13.2 % Corporate Bonds 12.7 % Short-Term Investments 10.7 % Foreign Issuer Bonds 9.9 % Bank Debts 9.2 % Municipal Bonds 3.8 % Bankruptcy Claims 3.5 % U.S. Government Obligations 2.8 % All other asset types less than 2% — % |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 117 Months Ended | ||||||||||
| Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 30, 2014 | |
| C000152732 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | River Canyon Total Return Bond Fund (Institutional Shares/RCTIX) | ||||||||||||
| Account Value | $ 170,197 | $ 170,197 | $ 170,197 | $ 151,791 | $ 142,252 | $ 150,697 | $ 139,399 | $ 135,077 | $ 122,616 | $ 116,778 | $ 109,748 | $ 104,969 | $ 100,000 |
| Average Annual Return, Percent | 12.13% | 4.73% | 5.61% | ||||||||||
| Bloomberg U S Aggregate Bond Index [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||||
| Account Value | $ 118,022 | $ 118,022 | $ 118,022 | $ 105,785 | $ 105,107 | $ 123,076 | $ 124,188 | $ 116,080 | $ 105,244 | $ 106,539 | $ 106,462 | $ 101,207 | $ 100,000 |
| Average Annual Return, Percent | 11.57% | 0.33% | 1.71% |
| Shareholder Report, Holdings (Details) - C000152732 [Member] | Sep. 30, 2024 |
| Asset-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.10% |
| Collateralized Mortgage-Backed Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| Corporate Bond Securities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.70% |
| Short-Term Investments [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| Foreign Issuer Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Bank Debts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| Municipal Bonds [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Bankruptcy Claims [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| U S Government Obligations [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| All other asset types less than 2 [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value |
