Number of Aircraft Financed

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Sum of the present value of 100% of the principal amount of notes redeemed and the remaining scheduled interest payments from the redemption date to maturity

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average interest rate of debt outstanding.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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Borrowings from Secured and Unsecured Debt Financings (Details) $ in Thousands		3 Months Ended	12 Months Ended
	Dec. 31, 2018 USD ($)	Jun. 30, 2019	Dec. 31, 2019 USD ($) Aircraft
Debt Instrument [Line Items]
Borrowings from secured financings	$ 798,457		$ 1,129,345
Number of Aircraft Financed \| Aircraft			41
Borrowings from unsecured financings, net of debt issuance costs	3,962,896		$ 3,932,491
Total	4,761,353		5,061,836
Present Value of Redemption Price		100.00%
Secured Debt
Debt Instrument [Line Items]
Borrowings from secured financings	798,457		1,129,345
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	425,000		150,000
Unsecured Debt
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	$ 3,962,896		3,932,491
2018 DBS Revolving Credit Facility [Member] [Domain] \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Term	3 years
Senior Notes Due 2024 [Member] \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000		$ 500,000
Interest rate on senior notes due			4.125%
Senior Notes Due 2026 [Member] \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	0		$ 650,000
DBJ Term Loan \| Term Loan
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	120,000		$ 215,000
Interest rate on senior notes due			3.359%
Senior Notes Due 2022 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	500,000		$ 500,000
Interest rate on senior notes due			5.50%
Unsecured Debt
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	(32,104)		$ (32,509)
ECA Term Financings \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate			3.58%
Borrowings from secured financings	189,080		$ 147,644
Number of Aircraft Financed \| Aircraft			6
Bank Financings \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate			3.82%
Bank Financings \| Notes Payable to Banks
Debt Instrument [Line Items]
Borrowings from secured financings	619,715		$ 993,593
Number of Aircraft Financed \| Aircraft			35
Secured Debt
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	(10,338)		$ (11,892)
Senior Notes Due 2019 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	500,000		0
Senior Notes due 2020 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	300,000		$ 300,000
Interest rate on senior notes due			7.625%
Senior Notes Due 2021 \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	500,000		$ 500,000
Senior Notes due 2021 \| Senior Notes
Debt Instrument [Line Items]
Interest rate on senior notes due			5.125%
Minimum \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Interest rate on senior notes due			3.21%
Minimum \| ECA Term Financings \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period			3.0153%
Minimum \| Bank Financings \| Notes Payable to Banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period			3.13%
Maximum \| Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Interest rate on senior notes due			3.41%
Maximum \| ECA Term Financings \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period			3.96%
Maximum \| Bank Financings \| Notes Payable to Banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period			4.63%
5.00 [Member] \| Senior Notes Due 2023 [Member] \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	500,000		$ 500,000
Interest rate on senior notes due			5.00%
4.25% [Member] \| Senior Notes Due 2026 [Member] \| Senior Notes
Debt Instrument [Line Items]
Interest rate on senior notes due			4.25%
4.40% [Member] \| Senior 4.40% Notes due 2023 [Member] \| Senior Notes
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	$ 650,000		$ 650,000
Interest rate on senior notes due			4.40%