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Preferred Stocks (Details) - USD ($) | Apr. 01, 2017 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Class of Stock [Line Items] |  |  |
Payments for repurchase of redeemable preferred stock | $ 15,600,000 |  |
Redeemable preferred stock classified as long term debt | $ 300,000 |  |
Preferred stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, shares authorized |  | 2,000,000.0 |
Preferred stock, par value per share |  | $ 100 |
Preferred stock, shares oustanding |  | 0 | 0
Preferred stock, series 4.50% |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, dividend rate, percentage | 4.50% |  |
Preferred stock, redemption price per share | $ 105 |  |
Preferred stock, series 4.70% |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, dividend rate, percentage | 4.70% |  |
Preferred stock, redemption price per share | $ 102 |  |

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- Definition The cash outflow for reacquisition of callable preferred stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21564-112644 + Details
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