Significant Accounting Policies - Additional Information (Details) - USD ($) |
1 Months Ended | ||
|---|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Significant Accounting Policies | |||
| Stock Issued During Period, Shares, New Issues | 250,000 | ||
| Preferred Stock, Dividend Rate, Percentage | 2.50% | ||
| Amounts accrued for the payment of interest and penalties | $ 0 | $ 0 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The percentage rate used to calculate dividend payments on preferred stock. No definition available.
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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