The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of assets reported by an equity method investment of the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33912-111571

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Investments (Details) $ in Thousands	3 Months Ended		9 Months Ended
Investments (Details) $ in Thousands	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) engine aircraft	Sep. 30, 2017 USD ($) engine	Dec. 31, 2017 USD ($)	May 25, 2011
Investments
Net book value of equipment held for operating lease	$ 1,590,482		$ 1,590,482		$ 1,342,571
Investment in WMES joint ventures at beginning of the period			50,641
Earnings from joint venture			1,569
Deferred gain on engine sale			(1,280)
Distribution			(5,730)
Foreign Currency Translation Adjustment			(762)
Investment in WMES joint ventures at end of the period	44,438		44,438
Other revenue	2,010	$ 2,549	$ 5,762	$ 6,439
WMES
Investments
Number of engines in lease portfolio \| engine			35
Number of aircraft in lease portfolio \| aircraft			1
Net book value of equipment held for operating lease	$ 266,100		$ 266,100
Ownership interest (as a percent)	100.00%		100.00%			50.00%
Investment in WMES joint ventures at beginning of the period			$ 36,014
Earnings from joint venture			1,831
Deferred gain on engine sale			(1,280)
Distribution			(5,730)
Investment in WMES joint ventures at end of the period	$ 30,835		$ 30,835
Number of engines sold to third party \| engine			2	2
Proceeds from sale of engine			$ 23,200	$ 14,800
Condensed Consolidated Statements of Income
Revenue	9,987	12,286	26,633	32,146
Expenses	8,408	6,366	22,762	20,820
WMES net income	1,579	5,920	3,871	11,326
Condensed Consolidated Balance Sheets
Total assets	284,988		284,988		246,309
Total liabilities	211,981		211,981		165,228
Total WMES net equity	73,007		73,007		$ 81,081
WMES \| Asset Management
Investments
Other revenue	600	$ 500	$ 1,800	$ 1,800
CASC Willis
Investments
Number of engines in lease portfolio \| engine			4
Net book value of equipment held for operating lease	$ 52,800		$ 52,800
Ownership interest (as a percent)	50.00%		50.00%
Investment in WMES joint ventures at beginning of the period			$ 14,627
Earnings from joint venture			(262)
Foreign Currency Translation Adjustment			(762)
Investment in WMES joint ventures at end of the period	$ 13,603		$ 13,603
Number of engines sold to third party \| engine			0	1
Proceeds from sale of engine				$ 11,200