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Capital Structure - Additional Information (Details) |  |  |  |  |  | 12 Months Ended | 72 Months Ended |  |
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Jun. 30, 2021 USD ($) director $ / shares shares | Jun. 29, 2021 USD ($) $ / shares shares | Aug. 19, 2020 USD ($) | Feb. 15, 2018 USD ($) $ / shares shares | Feb. 04, 2016 USD ($) | Dec. 31, 2022 USD ($) vote $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2018 shares | Dec. 31, 2016 USD ($) shares | Dec. 31, 2022 USD ($) $ / shares shares | Jun. 16, 2022 shares | Jun. 15, 2022 shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capital stock authorized (in shares) |  |  |  |  |  | 160,000,000 |  |  |  |  | 160,000,000 |  |
Capital stock, par value (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.0001 |  |  |  |  | $ 0.0001 |  |
Common stock, shares authorized (in shares) |  |  |  |  |  | 150,000,000 | 100,000,000 |  |  |  | 150,000,000 | 150,000,000 | 100,000,000
Preferred stock, shares authorized (in shares) |  |  |  |  |  | 10,000,000 |  |  |  |  | 10,000,000 |  |
Dividends | $ |  |  |  |  |  | $ 0 |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.0001 |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  | $ 0.0001 |  |
Retirement of treasury stock (in shares) |  |  |  |  |  |  |  |  | 3,900,000 |  |  |  |
Number of elected class two directors | director | 1 |  |  |  |  |  |  |  |  |  |  |  |
2020 Shelf Registration Statement |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on transaction | $ |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |
Silver Private Holdings I, LLC |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on transaction | $ |  |  |  | $ 97,700,000 |  |  |  |  |  |  |  |  |
Number of shares repurchased under program (in shares) |  |  |  | 5,994,667 |  |  |  | 6,000,000 |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  | $ 0.0001 |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ / shares |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |
Preferred stock, shares issued (in shares) |  |  |  | 185,000 |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, ownership percentage | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, ownership percentage | 10.00% |  |  |  |  |  |  |  |  |  |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  | 150,000 |  |  |  |  | 150,000 |  |
Preferred stock, par value (in dollars per share) | $ / shares | $ 0.0001 |  |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  | $ 0.0001 |  |
Preferred stock, liquidation preference (in dollars per share) | $ / shares | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, percentage one | 9.50% |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, percentage two | 13.00% |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, percentage three | 14.00% |  |  |  |  |  |  |  |  |  |  |  |
Liquidation and redemption value | $ |  |  |  |  |  | $ 73,000,000 |  |  |  |  | $ 73,000,000 |  |
Proceeds from sale of stock transactions used for redemption of shares | $ | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of stock transactions, used for redemption of shares and buy back of shares | $ | $ 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Preferred dividend paid in cash | $ |  |  |  |  |  | 6,455,000 | $ 1,781,000 | $ 0 |  |  |  |  |
Redemption of Series B Preferred stock | $ |  |  |  |  |  | $ 6,738,000 | $ 0 | 0 |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  | 150,000 | 150,000 |  |  |  | 150,000 |  |
Preferred stock, shares outstanding (in shares) |  |  |  |  |  | 71,000 | 75,000 |  |  |  | 71,000 |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of votes per share (vote) | vote |  |  |  |  |  | 1 |  |  |  |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption of Series B Preferred stock | $ |  |  |  |  |  | $ 0 | $ 278,665,000 | $ 0 |  |  |  |  |
Stock redeemed (in shares) | 268,917 |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate, percentage |  |  |  | 14.50% |  |  |  |  |  |  |  |  |
Value of shares redeemed | $ | $ 278,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  | 0 |  |  |  |  | 0 |  |
Preferred stock, shares outstanding (in shares) |  |  |  |  |  | 0 |  |  |  |  | 0 |  |
Share Repurchase Program 2016 |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program authorized amount | $ |  |  |  |  | $ 100,000,000 |  |  |  |  |  |  |  |
Number of shares repurchased under program (in shares) |  |  |  |  |  |  |  |  |  | 1,300,000 | 0 |  |
Stock repurchased during period, value | $ |  |  |  |  |  |  |  |  |  | $ 40,000,000 |  |  |
Share Repurchase Program 2016 | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, period in force |  |  |  |  | 12 months |  |  |  |  |  |  |  |
Share Repurchase Program 2016 | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program, period in force |  |  |  |  | 18 months |  |  |  |  |  |  |  |
Over-Allotment Option |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  | 3,846,154 |  |  |  |  |  |  |  |  |  |  |
Private Placement |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on transaction | $ |  | $ 102,300,000 |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  | 42,307,692 |  |  |  |  |  |  |  |  |  |  |
Private Placement | Series B Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received on transaction | $ | $ 72,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) | 75,000 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control 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(27)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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