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Shareholders' Equity - Additional Information (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 28, 2022 | Aug. 12, 2021
Shareholders' Equity [Line Items] |  |  |  |  |  |
Authorized and unissued common shares reserved for issuance (in shares) |  | 300,000,000 | 300,000,000 |  |  |
Common shares purchase price as percentage of fair market value |  | 95.00% |  |  |  |
Maximum value of shares purchased as percentage of employee compensation |  | 10.00% |  |  |  |
Common stock issued |  | $ 583 | $ 577 | $ 567 |  |
Share Repurchase Plan |  |  |  |  |  |
Shareholders' Equity [Line Items] |  |  |  |  |  |
Number of shares repurchased (in shares) |  | 0 |  |  |  |
Share Repurchase Plan | Subsequent Event |  |  |  |  |  |
Shareholders' Equity [Line Items] |  |  |  |  |  |
Number of shares available for repurchase (up to) (in shares) |  |  |  |  | 100,000,000 |
Number of shares repurchased (in shares) | 0 |  |  |  |  |
Dividend Reinvestment and Stock Purchase Plan |  |  |  |  |  |
Shareholders' Equity [Line Items] |  |  |  |  |  |
Authorized and unissued common shares reserved for issuance (in shares) |  | 3,300,000 |  |  |  | 3,300,000
Employee Stock Purchase Plan |  |  |  |  |  |
Shareholders' Equity [Line Items] |  |  |  |  |  |
Number of shares available for purchase (shares) |  | 500,000 |  |  |  |
Shares issued related to dividend reinvestment and stock purchase plan (in shares) |  | 35,000 | 43,000 |  |  |
Common stock issued |  | $ 583 | $ 577 |  |  |

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- Definition Employee stock purchase plan maximum value of shares purchased as percentage of employee compensation. + References No definition available. + Details
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- Definition Employee stock purchase plan share purchase price percentage of market value. + References No definition available. + Details
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- Definition Shareholders' equity. + References No definition available. + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition The highest quantity of shares an employee can purchase under the plan per period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 2: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: 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=120391452&loc=d3e13212-122682 + Details
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