Derivative Instruments - Narrative (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) contract	Dec. 31, 2019 USD ($) contract
Derivative [Line Items]
Number of interest rate swap contracts entered into \| contract		7
Number of interest rate swap contracts merged \| contract	2
Interest rate swap agreements \| contract	1
Derivative, term of contract	1 year
Principal	$ 3,132,090	$ 2,972,674
Secured debt
Derivative [Line Items]
Principal	85,945	104,261
Interest rate swaps
Derivative [Line Items]
Collective notional amount	$ 935,000	$ 1,500,000
Number of interest rate swap contracts extended \| contract	5
Interest rate swaps \| Minimum
Derivative [Line Items]
Fixed rate variable interest		1.108%
Interest rate swaps \| Maximum
Derivative [Line Items]
Fixed rate variable interest		2.425%
2016 Credit Agreement \| Line of Credit \| Secured debt
Derivative [Line Items]
Principal	$ 2,316,145	$ 2,380,755
2016 Credit Agreement \| Interest rate swaps
Derivative [Line Items]
Lines of credit outstanding	$ 1,400,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Period Type:	instant

- Definition

Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

+ References

No definition available.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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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

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Derivative, Number Of Instruments Held, Extended

+ References

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- Definition

Derivative, Number Of Instruments, Merged Into One

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- Definition

Interest Rate Swap Agreements

+ References

No definition available.

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- Details

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