Notes Payable - Callable Medium-Term Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Year two	$ 4,057,284
Year three	3,184,014
Year four	2,534,177
Total principal net of discounts	$ 24,067,063	$ 22,758,533
Weighted - average rate (as a percent)	1.77%
Year one
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.52%
Year two
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.35%
Year three
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.44%
Year four
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.18%
Call Option
Debt Instrument [Line Items]
Year one	$ 228,884
Year two	247,407
Year three	236,680
Year four	748,989
Thereafter	1,101,493
Total principal net of discounts	$ 2,563,453
Weighted - average rate (as a percent)	1.33%
Call Option \| Year one
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	0.43%
Call Option \| Year two
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	0.60%
Call Option \| Year three
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	0.93%
Call Option \| Year four
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.20%
Call Option \| Thereafter
Debt Instrument [Line Items]
Weighted - average rate (as a percent)	1.85%

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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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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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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 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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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).

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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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