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General - Narrative (Details) $ / shares in Units, R$ in Millions, $ in Millions |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  |  |
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Aug. 31, 2020 USD ($) | Mar. 06, 2020 USD ($) | Mar. 06, 2020 BRL (R$) | Jan. 02, 2020 USD ($) | Jan. 02, 2020 CAD ($) | Nov. 19, 2019 USD ($) | May 01, 2019 USD ($) | Apr. 22, 2019 USD ($) $ / shares shares | Feb. 01, 2019 USD ($) | Sep. 18, 2018 USD ($) $ / shares shares | Jan. 23, 2018 $ / shares shares | Mar. 31, 2019 USD ($) $ / shares shares | Sep. 30, 2020 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) shares | Mar. 31, 2020 USD ($) | Mar. 31, 2020 BRL (R$) | Sep. 30, 2020 USD ($) $ / shares shares | Sep. 30, 2019 USD ($) | Apr. 16, 2020 USD ($) $ / shares | Mar. 09, 2020 $ / shares shares | Mar. 08, 2020 shares | Dec. 31, 2019 $ / shares shares | Aug. 23, 2019 USD ($)
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares, par value (in USD per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.01 |  |  |  | $ 0.01 |  | $ 0.01 | $ 0.01 |  | $ 0.01 |
Common shares, shares authorized (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 325,000,000 |  |  |  | 325,000,000 |  |  | 325,000,000 | 250,000,000 | 250,000,000 |
Preferred shares, shares authorized (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 25,000,000 |  |  |  | 25,000,000 |  |  |  |  | 25,000,000 |
Preferred shares, par value (in USD per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.01 |  |  |  | $ 0.01 |  |  |  |  | $ 0.01 |
Preferred shares, share issued (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  | 0 |  |  |  |  | 0 |
Preferred shares, share outstanding (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  | 0 |  |  |  |  | 0 |
Payments for asset acquisitions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 25,538,000 | $ 35,161,000 |  |  |  |  |
Payments to acquire investment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 26,218,000 | $ 0 |  |  |  |  |
IPO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 33,350,000 |  |  |  |  |  |  |  |  |  |  |  |
Offering price (in USD per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 16.00 |  |  |  |  |  |  |  |  |  |  |  |
Underwriter's Option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  | 6,562,000 |  |  | 4,350,000 | 6,063,105 |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |
Public Offering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  | 42,062,000 |  | 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Offering price (in USD per share) | $ / shares |  |  |  |  |  |  |  | $ 29.75 |  | $ 24.50 |  | $ 27.75 |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares |  |  |  |  |  |  |  | $ 1,210,000,000 |  | $ 92,500,000 |  | $ 1,100,000,000 |  |  | $ 233,600,000 |  |  |  |  |  |  |  |
Offering fees |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |
Number of shares subject to forward sale agreement (in shares) | shares |  |  |  |  |  |  |  | 8,250,000 |  | 6,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Public Offering - YF ART Holdings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 38,422,583 |  |  |  |  |  |  |  |  |  |  |
Public Offering - Goldman Sachs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 8,061,228 |  |  |  |  |  |  |  |  |  |  |
At the Market Equity Program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |
Number of shares subject to forward sale agreement (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,346,101 |  |  |  |  |  |
Value of shares subject to forward sale agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 162,200,000 |  |  |  |  |  |
Authorized equity program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000.0
2020 At the Market Offering |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,094,431 |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 110,400,000 |  |  |  |  |  |  |  |  |
Offering fees |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,400,000 |  |  |  |  |  |  |  |  |
Authorized equity program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000.0 |  |  |  |
Remaining availability under equity program |  |  |  |  |  |  |  |  |  |  |  |  | $ 227,400,000 |  |  |  | $ 227,400,000 |  |  |  |  |  |
2020 At the Market Offering, To be Settled July 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares subject to forward sale agreement (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,429,104 |  |  |  |  |  |
Value of shares subject to forward sale agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 89,600,000 |  |  |  |  |  |
2020 At the Market Offering, To be Settled September 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares subject to forward sale agreement (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,916,997 |  |  |  |  |  |
Value of shares subject to forward sale agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 72,600,000 |  |  |  |  |  |
Americold Realty Operating Partnership, L.P. | General Partner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership of partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99.00% |  |  |  |  |  |
Americold Realty Operating Partnership, L.P. | Limited Partner | Americold Realty Operations, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership of partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |
Americold Realty Operating Partnership, L.P. | Limited Partner | Other Limited Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership of partnership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.01% |  |  |  |  |  |
Cloverleaf |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cash consideration |  |  |  |  |  |  | $ 1,240,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lanier Cold Storage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cash consideration |  |  |  |  |  |  | $ 81,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nova Cold Logistics |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cash consideration |  |  |  | $ 259,600,000 | $ 337.4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newport Cold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate cash consideration |  |  |  | $ 56,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Port Fresh Holdings, LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for asset acquisitions |  |  |  |  |  |  |  |  | $ 35,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
MHW Group Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for asset acquisitions |  |  |  |  |  | $ 50,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Caspers Cold Storage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for asset acquisitions | $ 25,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AM-C Warehouses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for asset acquisitions | $ 82,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Superfrio Armazens Gerais S.A. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity interest |  | 14.99% | 14.99% |  |  |  |  |  |  |  |  |  | 14.99% |  | 14.99% | 14.99% | 14.99% |  |  |  |  |  |
Payments to acquire investment |  | $ 25,700,000 | R$ 117.8 |  |  |  |  |  |  |  |  |  |  |  |  | R$ 117.8 |  |  |  |  |  |  |

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