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Mezzanine and Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Dec. 31, 2017 | Mar. 31, 2016 | Oct. 31, 2015 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares holdback percentage |  | 10.00% |  |  |  |  |  |
Share-based compensation arrangement by based payment award outstanding (in shares) |  |  |  |  | 813,965 | 725,864 |  |
Stock issued during period share conversion of notes (in shares) |  | 520,081 |  |  |  |  |  |
Stock issued during period value conversion of notes |  | $ 5,400 |  |  |  |  |  |
Holdback shares not issued to former shareholders (in shares) |  |  |  |  | 140,954 |  |  |
Payments of ordinary dividends common stock |  |  |  |  | $ 31,089 | $ 51,319 | $ 61,717 |
Treasury stock, common, shares (in shares) |  |  |  |  | 10,925,702 | 12,323,164 |  |
Allied Pacific of California Brokerage Account |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Treasury stock |  |  |  |  |  | $ 7,700 |  |
Tranche one |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Share-based compensation arrangement by based payment award outstanding (in shares) |  |  |  |  |  |  | 1,511,380 | 1,519,805
Warrant 1 |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Exercise price per share (in dollars per share) |  | $ 11.00 |  |  |  |  |  |
Number of warrants (in shares) |  | 850,000 |  |  |  |  |  |
Warrant 2 |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Exercise price per share (in dollars per share) |  | $ 10.00 |  |  |  |  |  |
Number of warrants (in shares) |  | 900,000 |  |  |  |  |  |
Private Placement |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares purchased by related party (in shares) |  |  |  | 1,111,111 |  |  |  |
Stock issued during period new issues |  |  |  | $ 10,000 |  |  |  |
Exercise price per share (in dollars per share) |  |  |  | $ 9.00 |  |  |  |
Former Shareholders of NMM |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  |  | 25,675,630 |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares purchased by related party (in shares) |  |  | 555,555 |  |  |  |  |
Stock issued during period new issues |  |  | $ 5,000 |  |  |  |  |
Exercise price per share (in dollars per share) |  |  | $ 10.00 |  |  |  |  |
AP-AMH | Affiliated Entity | Series A Preferred Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares purchased by related party (in shares) | 1,000,000 |  |  |  |  |  |  |
Stock issued during period new issues | $ 545,000 |  |  |  |  |  |  |
APC |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Interest costs incurred | $ 900 |  |  |  |  |  |  |
Payments of ordinary dividends common stock |  |  |  |  | $ 29,900 | $ 136,600 | $ 60,000 |
Treasury stock, common, shares (in shares) |  |  |  |  | 10,925,702 | 12,323,164 |  |
CDSC |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Payments of ordinary dividends common stock |  |  |  |  | $ 1,500 | $ 2,100 | $ 2,600 |
NMM |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  | 30,397,489 |  |  |  |  |  |
Number of shares holdback percentage |  |  |  |  | 10.00% |  |  |
Number of shares held back (in shares) |  | 3,039,749 |  |  |  |  |  |

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