Notes Payable - 4.50% Notes (Details) - Unsecured notes - 4.50 % Notes Due August 2028 - USD ($)	Mar. 31, 2020	May 16, 2019	Aug. 13, 2018
Debt Instrument [Line Items]
Amount of debt instrument			$ 450,000,000
Stated interest rate	4.50%	4.50%	4.50%
Price as percent of par on offering of unsecured Notes			99.252%
Annual interest rate			4.594%

Price As Percent Of Par On Offering Of Unsecured Notes

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

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

+ References

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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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