For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Lease Rental Revenues and Flight Equipment Held for Lease (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenue, Major Customer [Line Items]
Percentage of geographic concentration			50.00%
Lease Rental Revenue \| Customer Concentration Risk \| Customer Group One
Revenue, Major Customer [Line Items]
Percentage of geographic concentration	29.00%	21.00%	27.00%	21.00%
Maintenance Payments
Revenue, Major Customer [Line Items]
Amounts of lease incentive liabilities recorded in the consolidated balance sheets	$ 11,184		$ 11,184		$ 9,176