Total number of aircraft owned by joint ventures

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Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

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The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.

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Unconsolidated Equity Method Investment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) Aircraft	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Aircraft	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Unconsolidated equity method investments	$ 76,158		$ 76,158		$ 72,977
Equity Method Investments Before Earnings			1,673
Earnings of unconsolidated equity method investments, net of tax	$ 2,266	$ 2,026	4,508	$ 3,585
Distributions from unconsolidated equity method investment in excess of earnings			$ (3,000)
Total number of aircraft owned by joint ventures \| Aircraft	13		13
Property Subject to or Available for Operating Lease, Net	$ 5,818,821		$ 5,818,821		6,247,585
Customer Advances and Deposits	554,262		554,262		$ 591,757
Equity Method Investee
Property Subject to or Available for Operating Lease, Net	675,000		675,000
Maintenance Payments {Member] \| Equity Method Investee
Customer Advances and Deposits	11,523		11,523
security deposit [Member] \| Equity Method Investee
Customer Advances and Deposits	$ 5,100		$ 5,100