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Derivative Financial Instruments - Narrative (Details) $ in Millions, $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2020 USD ($) | Jan. 31, 2020 USD ($) | Jan. 02, 2020 USD ($) | Sep. 30, 2020 USD ($) instrument | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) instrument | Sep. 30, 2019 USD ($) | Sep. 30, 2020 AUD ($) instrument | Sep. 30, 2020 NZD ($) instrument | Jan. 31, 2020 CAD ($) | Jan. 02, 2020 CAD ($) | Dec. 31, 2019 CAD ($)
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  | $ 23,066,000 | $ 24,907,000 | $ 70,114,000 | $ 70,581,000 |  |  |  |  |
Foreign currency exchange loss, net |  |  |  | (196,000) | $ (43,000) | (373,000) | $ (66,000) |  |  |  |  |
Derivative liability, including accrued interest |  |  |  | 17,600,000 |  | 17,600,000 |  |  |  |  |  |
Termination value |  |  |  | 17,700,000 |  | 17,700,000 |  |  |  |  |  |
Interest rate contracts |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) to be reclassified in next twelve months |  |  |  |  |  | (5,000,000.0) |  |  |  |  |  |
January 2019 Agreement | Interest rate contracts |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Notational amount |  |  |  | $ 100,000,000.0 |  | $ 100,000,000.0 |  |  |  |  |  |
Notational amount, percentage |  |  |  | 16.00% |  | 16.00% |  | 16.00% | 16.00% |  |  |
August 2019 Agreement | Interest rate contracts |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Notational amount |  |  |  | $ 225,000,000.0 |  | $ 225,000,000.0 |  |  |  |  |  |
Notational amount, percentage |  |  |  | 37.00% |  | 37.00% |  | 37.00% | 37.00% |  |  |
January 2020 Agreement, Maturing February 28, 2020 | Foreign exchange forwards |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Notational amount |  |  |  |  |  |  |  |  |  | $ 217,000,000.0 |  |
Gain on settlement | $ 2,800,000 |  |  |  |  |  |  |  |  |  |  |
Nova Cold Logistics | Foreign exchange forwards |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of derivative contracts | instrument |  |  |  | 2 |  | 2 |  | 2 | 2 |  |  |
Unrealized gain |  |  |  |  |  | $ 100,000 |  |  |  |  |  |
Nova Cold Logistics | December 2019 Agreement, Maturing January 2, 2020 | Foreign exchange forwards |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Notational amount |  |  |  |  |  |  |  |  |  |  |  | $ 217,000,000.0
Gain on settlement |  |  | $ 2,100,000 |  |  |  |  |  |  |  |  |
Nova Cold Logistics | December 2019 Agreement, Maturing January 31, 2020 | Foreign exchange forwards |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Notational amount |  |  |  |  |  |  |  |  |  |  | $ 217,000,000.0 |
Gain on settlement |  | $ 200,000 |  |  |  |  |  |  |  |  |  |
Australian Subsidiary | Intercompany Loan Receivable | Foreign exchange contracts |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Receivable hedged |  |  |  |  |  |  |  | $ 153.5 |  |  |  |
New Zealand Subsidiary | Intercompany Loan Receivable | Foreign exchange contracts |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Receivable hedged |  |  |  |  |  |  |  |  | $ 37.5 |  |  |

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