Derivative, Amount of Hedged Liability

No definition available.

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Namespace Prefix:	art_
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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

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Derivative Financial Instruments - Narrative (Details) € in Millions, £ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2022 GBP (£)	Sep. 30, 2022 AUD ($)	Sep. 30, 2022 EUR (€)	Sep. 30, 2022 USD ($)	Sep. 30, 2022 CAD ($)	Dec. 31, 2021 AUD ($)	Dec. 31, 2021 NZD ($)
Foreign Exchange Forward
Derivative [Line Items]
Gain (loss) to be reclassified in next twelve months	$ (0.7)
Interest expense
Derivative [Line Items]
Gain (loss) to be reclassified in next twelve months	(5.2)
First Tranche \| Interest rate contracts
Derivative [Line Items]
Notational amount					$ 200.0
Second Tranche \| Interest rate contracts
Derivative [Line Items]
Notational amount					$ 270.0
Final Tranche \| Interest rate contracts
Derivative [Line Items]
Notational amount						$ 250.0
Series D and Series E Notes \| Senior Notes
Derivative [Line Items]
Amount of hedged loan		£ 68.5	$ 133.5	€ 780.5
Australian Intercompany Loan \| Intercompany Loan Payable \| Foreign Exchange Forward
Derivative [Line Items]
Amount of hedged loan			$ 153.5				$ 153.5
New Zealand Intercompany Loan \| Intercompany Loan Payable \| Foreign Exchange Forward
Derivative [Line Items]
Amount of hedged loan								$ 37.5
2020 Senior Unsecured Revolving Credit Facility \| Credit Facility \| Interest rate contracts \| Revolving Credit Facility
Derivative [Line Items]
Gain (loss) to be reclassified in next twelve months	$ 2.5