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Deferred Compensation Plans - Additional Information (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Dec. 31, 2018
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Deferred Compensation Arrangement With Individual Share Based Payments [Line Items] |  |
Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance | 122,271 | 116,766
Other Liabilities [Member] |  |
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items] |  |
Deferred Compensation Liability, Current and Noncurrent, Total | $ 3.3 | $ 3.4

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- Definition Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals. + References No definition available. + Details
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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. + Details
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References No definition available. + Details
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Period Type: | instant

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- Details
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