Notes Payable - Callable Medium-Term Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
2022	$ 3,764,817	$ 3,700,835
2023	1,839,291	1,594,709
2024	1,204,584	1,205,276
Total	$ 21,421,550	$ 19,098,648
Weighted - Average Rate (as a percent)	1.61%	2.28%
Call Option
Debt Instrument [Line Items]
2021	$ 491,862
2022	203,845
2023	37,953
2024	143,832
Thereafter	399,489
Total	$ 1,276,981
Weighted - Average Rate (as a percent)	1.56%
Call Option \| 2021
Debt Instrument [Line Items]
Weighted - Average Rate (as a percent)	1.02%
Call Option \| 2022
Debt Instrument [Line Items]
Weighted - Average Rate (as a percent)	1.43%
Call Option \| 2023
Debt Instrument [Line Items]
Weighted - Average Rate (as a percent)	0.82%
Call Option \| 2024
Debt Instrument [Line Items]
Weighted - Average Rate (as a percent)	1.80%
Call Option \| Thereafter
Debt Instrument [Line Items]
Weighted - Average Rate (as a percent)	2.25%

Long-Term Debt, Maturity, after Year Four

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- Definition

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.

+ References

No definition available.

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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.

+ References

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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-SubTopic 10
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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

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