Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Supplemental Financial Information [Abstract]
Accounts receivable related to customer contracts excluding dry leasing contracts	$ 189.5	$ 247.5

Accounts receivable net related to customer contract excluding lease contracts.

No definition available.

Name:	aaww_AccountsReceivableNetRelatedToCustomerContractExcludingLeaseContracts
Namespace Prefix:	aaww_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant